In This Issue Plants, Light, and LEDs Part 7 LEDstick for Greenhouses Follow the Aqua-Bar Discussion Featured Distributor Mplus Distributing Rotterdam, Netherlands +31618785301 www.ledgroeilampen.nl Featured Product: The LGM1 Standard Model The LED Grow Light for leafy plants, seedling to early vegetative, where compact vegetative growth is desired. The LGM1 is perfect for counter top lettuce or starts. Easily mounted anywhere you would like to Grow receive 10% off of your purchase of the LGM1 model in the month of August by simply mentioning that you are a reader of the LED Gardener. (Enter into Special Requests if using our website shopping cart.) Order now. 1-866-414-7244 Care to Comment? The LED Gardener appreciates all the input we receive from our readers. If you would like to submit an article or pictures; or if you would like to comment on a current article please send submissions and comments or questions to angela@led-grow-master.com You are receiving this email because you subscribed at led-grow-master.com If you do not wish to receive this newsletter :Request your name removed by emailing angela@led-grow-master.com Contact LED Grow Master Global: Admin@led-grow-master.com |
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| October 1, 2008 Volume 3, Issue 10 |
What is "white light"? Interestingly, in nature there really isn't any such thing as "white light". When all three of the light receptor pigments in the eye (red, green, and blue) receive light signals simultaneously, there is no clear shade of color detected, and so the brain interprets the light as being some shade of "white" light. This means that despite the feelings of many people that a man-made light generator must produce some sort of "white" light in order to grow plants well, plants receive no special help from a light source simply because it appears "white" to the human eye. In fact, it only takes two colors of light to make a light source that looks "white" to people, for example, yellow and blue, which would have limited use to many plant processes. This has special implications for "white" LEDs. No one has yet built a single-chip LED that produces "white light". Today's "white" LEDs are nothing more than a blue LED mixed with a phosphor that uses some of the blue light output from the LED's chip to create yellow light. Together, the yellow and blue light from a "white" LED looks very white to the human eye, but again offers very little of the colors of light needed by most plant processes. For now, all we know for sure is that there is no magical blend of light colors that are known to supply everything plants need to grow. Sunlight, obviously, provides all the light colors plants need, plus many more. In man-made light generators it is a waste of energy to create any colors of light not used efficiently by plants. This fact alone gives well designed LED grow lights the technological edge over the types of grow lights based on lamps originally designed to light up rooms for people. --CEO SolarOasis *******************************************************************************************************
With electricity costs being prohibitive from the onset, even limited use of HID/Fluorescent lighting in greenhouses involves a significant operating cost limiting farmers to mostly spring and summer months. Prohibitively, the general plan is to use artificial lighting only when absolutely necessary, perhaps 2-6 hours per day. Farmers burn sodium, halide, or fluorescent lighting but bulb replacements and electrical costs quickly add up. What if we add light to our greenhouses without the heavy electric bills and using bulbs which last 10-20 times longer? How much would we all benefit from year-round greenhouse crop production? With LEDstick™, up to 50sqft of canopy can be illuminated extending day period and augmenting existing daylight. LEDstick™ (ref. photo 96"L x 2.5"W) uses just under 40 watts of electricity (Easy Solar/Wind Power).At 10 cents per kWh LEDstick™ will cost just 10 cents per 24 hours of operation, while HIDs will cost up to $3.00 per 24 hours of operation. LEDstick™ requires no fans or heat sinks, because they emit very little heat. LEDstick™ is easy to raise and lower; using aircraft grade 3/64" stainless cables and tiny Griplocks. Also light weight, and the slim design won't block out sunlight. Built to last for a lifetime of 11+ years, say goodbye to lamp and ballast replacement. LEDstick™ is how.
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LED Grow Lights in Greenhouses