2012-03-26 You can add items from the left menu by dragging them here.
Hydroponic gardening or soilless gardening is a growing plants in nutrient solutions, as opposed to using soil as a growth
medium. At times, inert medium like gravel, perlite or rockwool is employed in soilless gardening. Usually, hydroponics is practiced as indoor gardening. The necessary plant growth factors such as temperature, light and humidity are maintained in controlled conditions, so as to promote the growth and progression of plants high quality led grow lights. For better efficiency, artificial lighting systems called grow lighting is utilized to supplement the scarcity of sunlight. These grow lights emit electromagnetic spectrum exactly like the sunrays, which enhances the photosynthesis of the plants. Previously, metal halide and pressure sodium are used as hydroponics lighting systems. Though these grow lights provide an ideal light spectrum for your plant growth, they generate excess heat and consume lots of electricity. Thus, these traditional grow lighting is expensive to keep. A much more energy-efficient lighting system is the LED (light-emitting diode) grow light. In recent years, LED grow lights are becoming popular for hydroponicgardening because of various advantages. One of the major important things about this lighting product is low cost of maintenance. The technology of LED grow lights is usually to emit only the color spectrum essential for the flower photosynthesis. Hence, they consume less amount of electricity as compared to the traditional lighting system as well as other grow lights. While on an average, LED grow lights consume less than 5 watts of power for operation. In LED growlights, wide-spectrum red light and narrow-spectrum blue light of specific wavelengths are configured in the particular manner 12v led grow lights. The red spectrum supplements natural sunrays, whereas the blue spectrum makes an ideal light to the plant growth. Thus, LED grow lights provide ideal light conditions for your better development of various plants and/or crops. Moreover, this lighting system contains no toxic mercury, which is often used in fluorescent lights and metallic vapor. There are several models of LED lights, each suitable for various plants in addition to their successive stages. By way of example, some LED grow lights are created for vegetative growth, whereas some are specially configured to market flowering and/or blooming. Discussing the installation, LED grow lights needs to be hanged or mounted in hydroponic gardens, depending on the manufacturer's guidelines. While using the LED grow lights, the height should be maintained such which it covers the absolute maximum plantation area. Another advantage of LED grow lights could be the less creation of heat. With minimum heat production, water requirement also reduces on account of less evaporation. The issue of high temperature root damage and plant dehydration is thus solved by making use of LED grow lights. Hence, with this particular lighting system, there is no need for installation of fans or cooling ducts. led grow lights hydroponics As these grow lights are available readily with plugs,no ballast is needed for your initiation and unsafe effects of the lights. Thus, there is absolutely no problem for ballast burning and/or replacement, which is so in the case of fluorescent bulbs. LED grow lights are long-lasting; an exceptional takes 10-12 years. Overall, LED grow lights are much easier to maintain and less than other lighting systems useful for hydroponic gardening. 2012-03-24 You can add items from the left menu by dragging them here.
South Africa World Cup coming, from the Olympic Games may be flagging along with other sports brands have come good
time. Light for the entire year's orders just for this month surge, a shop is decorated in football resemble, all team jerseys, South African Globe Cup ball, and fans began to endless competitions, Adi soccer retailer staff said that the newest Globe Cup atmosphere gradually concentrated obviously feeling available online for 48 hrs before 13 guests at one go to purchase shirt. rt led grow lights eu. Of the Adidas, Nike, Puma, Umbro and also other sports brands, this can be a "gamble", we've got sponsored their unique teams to see that is the most visionary, the very last champion inside bag All merchandise can create a consumer a "World Cup." Or else to the fanatical fans inside the fight for market share, revenue arm of Nike, Umbro wouldn't normally, gambling will be the fans eye. labels are already excellent, very little brand might be spared, causing a large numbers of goods on hold, the number of brands in '09, that price-cutting, selling goods inventory with the complicated scenarios and eventually lead to brand all sports agents are bearish marketplace outlook, it's been lower than last year's order, availability of goods can also be intermittent But through the second quarter with this year, virtually all brands have 10% order growth, even though the ordering scheme proven to the finish of this month, this improve will amount to 30%, besides the Globe Cup, very little other more adequate reason to order to compliment underground agents so bold. "June 11 to July 11 could be the most boiling time fans, this month, sales of sports merchandise blowout happens." Said head of a sports brand. Since Adidas may be the exclusive sponsor worldwide Cup, so the soccer shop store Yintai martial arts have become popular, nine in the team's uniforms are on sale at the counter, guests are said to possess one go to shops to purchase 16 thing, that 13 are national team jersey, a purchase order reached a lot more than 8000 yuan. Buy all the uniforms of the guests, though small, but many fans will pick a few bits of their most favorite team, along with the number of their uniforms. Adi soccer shop staff asserted Argentina continues to be biggest selling jersey, the ball has been said to get 50% and services information customers will be the preferred uniform of Argentina, Argentina appears attached to Hangzhou people today. The uniforms of numerous players, with legendary ball 10 most followed suit, "the 10th Macy's ball is ready-made clothing, a 698 yuan, when consumers purchase a small unambiguous." Counter salesperson said , due to World Cup, soccer clothing sales now is 8 times regular. Together with Adidas, Nike, Puma, Umbro in addition have sponsored their particular teams, for example Nike-sponsored Brazil, holland, Portugal, Columbia, Croatia, Serbia, Australia, Puma Italy, of course, support, and Yan Bao is in England performing my area of the sponsors, who sponsored they get as far, meaning the brand can laugh longer, if early, remain in the action uniforms plus a series of appealing merchandise to shoppers can be significantly impaired the. Nevertheless, there tend to be than the usual month faraway from World Cup, time, but for the fans, or even early to begin, not likely desire to rush issues. Based on Adi soccer shop mentioned track ball to celebrate the 1080 expense of one, who has sold greater than 50, and the counter is not having enough football left, if you'd like collection customers ought to seize some time, that period the business can not be supplemented arrival is tough to state. Apart from the brand's global services produced outside of the ball in order to print their particular service quantity and the names of football stars, the very best advance for the counter, "over time many of the guests arrive here to India Group acquire uniforms, then printed code machine could possibly be overwhelmed, so fans work most effectively prepared ahead of time. "Intime fighting techinques shop Adi soccer shop official stated, India a global service time about Quarter-hour every day, India and 50 groups of uniforms, if your guests several would an appointment. Were high quality suppliers, our goods including China High Energy LED GrowLights , Flexible LED Strip Light for oversee buyer. high powered led grow lights To learn more, please visits LED Plant Grow Lights. 2012-03-17 You can add items from the left menu by dragging them here.
Plants and trees are an integral part of human beings' life. But it's an alternative undeniable fact that wehumans are not giving correct attention to them and so are unmindfully depleting them. But the awareness has lastly dawned on us so we have started to have a U turn and begin helping the greenery in and around our home. In the process, many have changed into plant lovers and also have joined the present number of plant growers. To encourage these people growing plants even indoors and creating dream green houses easy for everybody, the LEDGrow Lights are already introduced. These LED Grow Lighting is a form of lights which can be employed to imitate natural sunlight to aid the plants grow in a really natural sort of atmosphere. Many of the effective in case of indoor plants where sunlight reaches the minimum or possibly without the sunlight. There are specific variables whichwe do not know about the plants like the way they grow and what they need. One among them may be the precise energy that they need. We simply realize that plants require sunlight to cultivate. But we're not aware of the fact they do not need the whole sunlight but only take specific distinct colored lights from your sunlight. With your colors they actually do their very own photosynthesis. The researchers have realized this aspect and applied this inside the LED Grow Lights which could thus, emanate just the required color i.e. mainly red and blue. When only the necessary colors are designed the plants absorb them quickly and grow happily. Like this, the cost aspect is also looked after by means of reducing the creation of other unnecessary colors by these LED Grow Lights. And yet another essential truth is the intensity where these lights must be emanated can be simply controlled based upon needing the plants. In addition, but otherwise also, these lights consume much less power in comparison to some other such lights. In addition to this, they cannot need any supporting equipments like ballasts, coolers and special wall mounting. They are often hung everywhere you look. This makes a cool and noiseless atmosphere which makes it a great one for that plants. The result of this is that the plants grow with a considerably faster rate really wholesome manner and also the productivity too is enhanced considerably. 5w led grow lights These LED grow lights are extremely a lot successfulfor your vegetable growers as they possibly can grow various vegetables with out awaiting the specific season in the future. That is made possible as a result of variations that may be manufactured in these lights according to the advantages of the plants. So now you will get all sorts of vegetables in all of the seasons. That is the real great news. So now, even you are able to become among those plant lovers who would start growing plants in your garden as well as indoors and see how happily they grow. Seeing this greenery you will probably grow to be happy and joyful. 2012-03-12 You can add items from the left menu by dragging them here.
Indoor plant growing is really a hobby for many, as it also works as a income for many. However,it can be hard to ensure proper increase of plants within the presence of insufficient sunlight. Grow lights have been about for several lights and it is be the newest innovation on this direction. There are many advantages the lights offer over other sorts of grow lights. LED lights are energy-efficient and have durability. Moreover, they may be environment-friendly and available in different designs. It made of LEDs are inexpensive and emit low volume of heat led grow lights high times. These reasons are sufficient that you can encourage your web visitors to acquire these lights. At the same time, you need to keep in mind some important methods he industry is more than likely to think about before purchasing LED lights. The main key to choose the right kind of LED grow lights could be the wavelengths they emit. LED lights come with an advantage on traditional grow lights which emit the whole spectrum of sunshine. Alternatively, one can find blue, red and orange LEDs for plant growth at various stages. For instance, seedlings require blue LEDs to develop, while red LEDs are utilized through the flowering stage. Success has been achieved to style LED lights that can be designed to emit different wavelengths at different stages of plant growth. lighthouse led grow lights Your customers may need for such products and you also have to be able to entertain the requirements. Based on the kinds of plants they wish to grow, the indoor garden owners ensure to get information about the best sort of grow lights to buy. Ornamental and flowering plants might have needs distinctive from non-flowering plants. Likewise, fruit and vegetable plants may requirement for different LED grow lights. It is a good option to own straight answers within this direction to help your visitors pick the best products. Another essential factor could be the size where the customers wish to grow their plants. You must realise that it could be put better the plants as compared to other types of grow lights. How big is the area plays a tremendous role in deciding the quantity of lights required. Use of natural light or other sources of light space too helps in making the choice for it. As a possible expert seller, you need to share information along with your customers normally made available, since it will add for a reputation. Finally, it does not take cost of it and budget at your fingertips that influence the customers' decision to get. You can obtain the provision of those lights at different price ranges from various manufacturers and suppliers. Compare their prices web pick a profitable deal. 2012-01-26 You can add items from the left menu by dragging them here.
LED Development
LED's (Light Emitting Diodes) had been first found in 1927. bridgelux led grow lights Decades later experimenters began creating LED technologies into how it is these days, generating the initial red LEDs in 1962. By 1972 the efficiency of those red LED's had elevated by 10x, after which they became a practical technologies for commercial applications. The initial commercially-used LED's replaced incandescent and neon indicator lamps, while they lacked the output necessary to illuminate a place. As time took and LED supplies became higher, light output elevated with a level that could be useful for illumination, as well as the chronilogical age of LED came to be. Because the 1960's the efficiency and light production of LED's have raised exponentially, doubling each and every Three years much like Moore's Law. This trend has become known as Haitz's law, which proceeds even now. LED Grow Lights By 2005, efficiency and light production of LED's had elevated to the stage where we were holding lastly competent at replacing other designs of lighting. Immediately after 2005, providers across the world began developing new services for the platform of LED, one of which could be the LED Grow Light. From the year 2010, the market industry became flooded with LED Grow Lights, nearly all of which received poor critiques as a result of false promises produced by the firms selling them. Itis sad but genuine that many organisations selling LED Grow lights do no development with them whatsoever, relying instead on progress made by Chinese producers who in no way grow any plants using their goods. The simplest way to identify these businesses is by searching for "Tri-Band" or "Quad-Band" of their product description or usage of wide-angle (low intensity) 120 degree lenses in their goods. These are generally dead giveaways that this product you are thinking about had not been put together by the company advertising it. Quantum LED Grow Lights Quantum LED Grow Lights fromGrow Stealth LED are as opposed to some other LED Grow Light in the marketplace. These Grow Lights utilize a exclusive 5-band or 6-band spectrum, with regards to the wants of the person. Grow Stealth LED's 5-band style brings any plant from seed by means of harvest, without any need for a different veg/bloom light, whereas their 6-band style improves flowering response, increases yields approximately 30%, and increases THC production in Cannabis plants! Grow Stealth LED's distinctive Quantumbalancing enables their LED Grow Lights to execute in contrast to every other led grow lights 600w. Quantum efficiency addresses the quantity of photons required for occurance of one oxygen molecule in photosynthesis ( a byproduct of CO2, Water, and Light). A lot of scientists have believed plants absorb hardly any light inside 500-600nm region of PAR, even so new information shows that this region plays a crucial role in growth occasions, yield, and photosynthetic efficiency. Investigation published by NASA confirms that whenever the aspects of PAR (400-500nm, 500-600nm, 600-700nm) are properly balanced, the entire growth cycle may be decreased by 25%, using a subsequent yield boost of 30%. What this means is much more yield quicker, creating Quantum LED Grow Lights the top LED Grow Light capital can get. Grow Stealth LED Grow Stealth LED has also gone further by delivering correct 3W LEDs in their merchandise, to deliver the total intensity your plants must flourish. Their 90 degree lens intensifies this light much more, concentrating it into a focused area for plants to cultivate beneath. Switching to cultivate Stealth LED Grow Lights will reduce your energy bills by up to 70%, whilst eliminating the requirement for pricey HID bulb replacements. 2012-01-08 You can add items from the left menu by dragging them here.
Grow lights behave as artificial light sources to stimulate plant rise in areas that receive less sunlight. Incandescent, fluorescentand HID lights will be in use since miss this purpose. However, the application of it can be fast replacing other grow lights by providing many significant advantages. The technology is being improved further to incorporate a brand new dimension on this direction. People having small gardens, orchids and indoor horticulture places increasingly becoming knowledgeable about some great benefits of it for better production. Stores selling grow lights too are recognizing the growing interest in these lights. Therefore, you'll find LED lights available in different varieties at these stores to help buyers pick the best. Listed here are the key reasons for people giving preference on the grow lights created from LEDs. It can be created to produce light which a particular plant must grow. By way of example, blue LEDs are appropriate for the vegetative growth of plants. LEDs in red colorization are preferred to the growth of flowers and also fruits. These lights manage to greatly enhance the amount of photosynthetic activities among plants. One more reason for folks to get it's the lesser amount of energy they consume in comparison to incandescent as well as other kinds of it. Consequently, these are counted one of the most efficient grow light items that cost less and produce great results. By installing grow lights manufactured from LEDs, one can possibly significantly decrease the level of water that must definitely be fed towards the plants. The reason being these lights produce less heat than other grow lights. Due to less heat generation, the amount of transpiration too decreases significantly within the plants. Therefore, gap between two watering cycles may be increased. It gained popularity as a consequence of many reasons and their ability to are long is a most notable. This quality favors LED grow lights too. People along with them for indoor crop production can expect these lights to demand less investment. like shock and burns. This can be one good advantage, specially when these lights are placed in the wet plant growing environment. At the same time, it is environment-friendly because they don't contain harmful materials like mercury and lead. Therefore, they're an easy task to dispose or recycle and don't cause any threat to environment safety. Conventional varieties of its require additional components like reflectors and ballasts to do better. However, LED based grow lights not one of them these add-ons, thereby saving additional expenses. top rated led grow lights People with flower orchids and horticulture venues can find these lights to be cost-effective solutions. With the aid of it, safe and much better plant growing benefits is possible at lower costs. Moreover, the decorative nature of these lights makes them a lot more attractive for use at plant growing venues. Considering every one of these amazing features, you can take the wise decision of offering your clients these efficient grow light options led grow lights ontario. 2012-01-03 You can add items from the left menu by dragging them here.
led grow lights high times LED grow lights are a somewhat new technology. Inside future it is primarily the
authors belief that they'll replace HPS grow lights. As a way to know how LED grow lights work you have to first know how plants grow. It initially it may look like type of complex but when you already know the fundamentals the rest is pretty simple to start learning on your personal. In contrast to animals plants use sunlight to create their food in the procedure generally known as photosynthesis. The power through the photons with the sunlight can be used to get chemical power in plants. Photosynthesis desires two main components as a way to generate chemical power employing sunlight: carbon dioxide and water. It releases oxygen as being a waste item. The planet wide total power captured by photosynthesis is around 100 terawatts. The 1st photosynthetic organisms created roughly three.5 billion in years past. The method begins when power from light is absorbed by proteins named photosynthetic reaction centers. These reaction centers contain chlorophylls held within chloroplasts. The vitality gathered from chlorophylls is stored in the type of adenosine triphosphate (ATP). Organisms that are able to convert light into power are termed as photoautotrophs. A chloroplast is called an organelle, the cell equal of a body organ. Chlorophylls are simply capable of absorbing selective wavelengths of sunshine. The reason why plants appear green is because don't absorb light through the green the main spectrum. The majority of the sunlight energy captured influences leaves in the plants. Green plants only absorb light at certain wavelengths (). There are 2 varieties of primary chlorophylls every you are effective at absorbing light either in the blue or red spectrum. Chlorophyll A finest absorbs light at wavelengths of 430nm and 680nm. Chlorophyll B absorbs light at its maximum efficiency at wavelengths 470nm and 630nm. Chlorophyll will absorb light that falls a little beyond its peak efficiency but because wavelength distance increases from max efficiency the efficiency of absorption will decrease promptly. LED grow lights work by only targeting the wavelengths of sunshine that plants are in a position to absorb most efficiently (). For this reason most LED manufactures use 440nm, 470nm , 630nm and 660nm LEDs. Due to the fact LED grow lights only produce light in the areas where plants are capable of absorb them most effectively they're able to maximize the increase of the flower compared to a white spectrum of equivalent light. Guru Grow Lights has spent the last a couple of years creating the best mix of LEDs to use in their grow lights (). 2011-12-28 You can add items from the left menu by dragging them here.
LED grow lighting is a somewhat new technology led grow lights for plants. Within the coming years it is
primarily the authors belief that they'll replace HPS grow lights. As a way to understand how LED grow lights work you should initially understand how plants grow. It very first it may seem sort of difficult but once you already know the fundamentals the remaining is rather easy to learn on your own. In contrast to animals plants use sunlight to get their food in a very approach known as photosynthesis. The vitality from the photons in the sunlight is employed to build chemical power in plants. Photosynthesis demands two primary ingredients to be able to create chemical power utilizing sunlight: skin tightening and and water. It releases oxygen as a waste product. The entire world wide total power captured by photosynthesis is just about 100 terawatts. The very first photosynthetic organisms created roughly 3. cheap led grow lights five billion in years past. The task begins when power from light is absorbed by proteins named photosynthetic reaction centers. These reaction centers contain chlorophylls held inside of chloroplasts. The vitality gathered from chlorophylls is kept in the type of adenosine triphosphate (ATP). Organisms that will convert light into power are referred to as photoautotrophs. A chloroplast is referred to as an organelle, the cell equal of an organ. Chlorophylls are only capable of absorbing selective wavelengths of light. The key reason why plants appear green is because they do not absorb light from your green area of the spectrum. Almost all of the sunlight energy captured is incorporated in the leaves with the plants. Green plants only absorb light at specific wavelengths (). There are two kinds of most important chlorophylls and every an example may be able to absorbing light in a choice of the blue or red spectrum. Chlorophyll A ideal absorbs light at wavelengths of 430nm and 680nm. Chlorophyll B absorbs light at its maximum efficiency at wavelengths 470nm and 630nm. Chlorophyll will absorb light that falls a bit outside its peak efficiency but because wavelength distance increases from max efficiency the efficiency of absorption will lower rapidly. LED grow lights perform by only gps unit perfect wavelengths of sunshine that plants are capable to absorb most effectively (). This is why most LED manufactures use 440nm, 470nm , 630nm and 660nm LEDs. Considering that LED grow lights only produce light inside places that vegetation is able to absorb them most effectively they're able to maximize the expansion of guarana compared to a white spectrum of equivalent light. Guru Grow Lights has spent the very last couple of years creating the very best mix of LEDs to utilize rolling around in its grow lights (). 2011-12-24 You can add items from the left menu by dragging them here.
Along LED grow lights, there has been other devices which might be used to influence quicker plant growth. These power
tools will make usage of questionable sodium, metal halide, or even a compact fluorescent lamp. Ruthless sodium or HPSs are able to expose plants to a entire variety of light spectrum, and that's why some gardeners prefer such kind. that it is undergo various life cycles. This then decreases the lifetime of their ballast, the inductive component in HPS. However, LEDs last as long as 35,000 - 50,000 hours. They can quite possibly take a span of 7.Several years, having a every day use of 18 hours. Like HPS lamps, the sunlight from LEDs also suits different varieties of plants, from fruits to exotic flowers. This could help you save space, due to the fact there couldn't survive any must segregate your plants and purchase separate lights for every group. Should you be thinking about applying metal halide rather than LEDs, you have to be conscious of a high-intensity discharge or HID's brightness doesn't necessarily lead to absorption. So, even if your eyes work best which has a brighter surrounding, may possibly not function as the same goes with your plant. In a study, it is often observed the eyes are most understanding of the yellow section of the light spectrum. Meanwhile, should you monitor the wavelength from the plants' photosynthetic response, it will show a weak reply to that very same portion. When compared with HID, LED grow lights is similar to the response rate of the chlorophyll found in plants. Therefore, almost all the light emitted by LEDs is absorbed. They're also lower in consumption, when compared with HID lighting. So, would you need to feel guilty about leading to the "energy crisis" simply because you maintain your plants. It will also mean a reduction on the electric power bills as LEDs don't create that much heat which would ask you to counteract it with cooling devices to safeguard heat-sensitive plants, especially young, tender sprouts. Fluorescent lighting is also great contenders to plant growing purposes since they are considered efficient, having low power consumption and a relatively lengthy lifetime. But, their mercury component makes their disposal a difficulty for humans along with the environment. On the other hand, LED grow lights have low toxicity levels that pose no genuine danger for your health or even the environment. The sole disadvantage they've resulted in disastrous outcomes are their sensitivity to voltage fluctuations, which is often effortlessly remedied by connecting these phones existing regulators. Now, in terms of value, LED grow lights had been very costly initially. However with the production of smaller bulbs and kits, the fee is becoming extra consumer-friendly. In case you are already using HID and other reasons for lighting, you can replace some of them with a few LEDs, only to decrease your energy consumption and value. Then bit by bit, you'll be able to completely replace them for optimal use of souped up that can render greater recent results for your plants. 2011-12-19 You can add items from the left menu by dragging them here.
LED grow lighting is one of the forms of bulbs that may be accustomed to grow indoor plants. These kinds
of lights supply lots of benefits over other kinds of bulbs because of their energy conservation, longer life span and the full-range of your light spectrum in which they are able to present indoor plants. Fruit and veggies. conjunction with hydroponics systems growing your own personal food, indoors! Medical cannabis. Some states let the medical growing of marijuana that is typically grown indoors. These lights are one of the better solutions to deliver this plant while using ideal light needs at the fraction of the expense when compared with questionable sodium blubs (HPS). There islots of hype around the usage of LED grow lights on your indoor plants. Although several believe this is simply a fad they have actually gained momentum as a much better way to obtain indoor lighting due to many reasons. A few of these are: Energy Savings - While many sources across the internet exaggerated the power savingcapabilities of LEDs over HPS and Metal Halide (MH) bulbs the fact remains why these indoor grow lights save about 40% - 75% from the energy, although giving the same amount of light. The reason why just for this is solely that LEDs can be a a lot more effective supply of light. Low Heat - You'll find3 main good things about lower, if just about non-existent, heat from LEDs. These are generally that LEDs is not going to burn a plant in order to stick them considerably closer to the flower your are growing indoors. The opposite positive aspects are that the space that you are growing the plants will not likely get too hot, that is a major problem for many plants. The past cause is that it reduces fire hazards, the industry significant advantage. Leds don't need all of the accessories! - You don't to purchase high priced ballasts as well asother accessories that you just want with other kinds of lights like MH and HPS bulbs. Long Lifespan- The long lifespan of LED's plays a part in a much more cost effective product that you need not replace each and every 5,000 hours people (in comparison to HPS). LED's continue for providing 50,000 to in excess of 100,000 hours, 10 to 20 times more than HPS bulbs. Superior Light Spectrum - LED's create a greaterlight spectrum which is why plants may use. led grow lights new zealand This makes them a lot more effective in producing the sunlight needed for a plant to produce energy although photosynthesis. I have listed many of the many reasons for you to use LED grow lights to develop your indoor plants. Check out some of the bargains on LED grow lighting. | Author
Write something about yourself. No need to be fancy, just an overview.
Archive
Categories
RSS feed |