Earth Solutions

LED grow lights are one of the most efficient light sources for indoor growing because the individual LED components can be tuned to deliver specific light spectrums, therein meeting plants' required ratios and intensity levels. According to research, plants only use about 30% of the light levels we see. Plants appear green because the plant is not taking in a particular color spectrum, reflecting it back and letting us know not all spectrums are being absorbed.
Photosynthesis and lighting:
First lets review the science behind photosynthesis. Plants convert sun light energy into plant energy via a process called photosynthesis. There are two primary compounds that drive photosynthesis (Chlorophyll A, and Chlorophyll B). These compounds absorb primarily blue and red light. The points at which Chlorophyll converts light energy into plant energy most efficiently, is known as an absorption peak. These peaks can be measured in units called nanometers (nm). Peak absorption points for Chlorophyll A occur at 439nm and 667nm, while they occur at 469nm and 642nm for Chlorophyll B.
LEDs can emit narrow wavelengths of light, and are capable of being tailored to nearly any nm the plants desire. By using LED's at the same nm as each of the absorption levels for Chlorophyll, LED lights are able to convert light energy into plant energy more efficiently. Unlike HID lights, which emit the full spectrum of light (most of which isn't used by plants). This means your plants will get all the light it needs using only 20% of the energy of a HID light. By not having to get rid of the additional heat HID lights produce, savings could exceed 95%!!!!

Not All LED lights are created equal:
U.S. Department of Energy has been testing LED lights for several years. In 2009 the DOE published a report concluding that LED lights on the market are making efficiency claims that are not matched by their actual performance. Furthermore, the light colors varied significantly from the specified color on the product. Web link to the study below;
http://apps1.eere.energy.gov/buildings/publications/pdfs/ssl/troffer_benchmark_01-09.pdf
Finally LED lights are very sensitive to their operating temperature. While LED lights do generate less heat, the temperature is generated on a very small surface making it more difficult to manage.
Thermal management in LED light is crucial. If the LED light runs too hot the color spectrum may change, resulting in the light running less bright, in addition the light will not last as long. Assuming that LED lights were designed in the perfect spectrum and ratio to match required light intensity, if the light cannot maintain the desired spectrum, it will produce a less than optimal light spectrum resulting in less peak absorption by the plants. When the light runs hot, it also isn't as bright, resulting in less efficiency of the light and adequate levels to penetrate the canopy, not allowing light to get to the part of the plants that need it. Finally, when running hot, the LED light will not last as long as the 50,000 hours promised by the manufacturers. In summary, buying LED lights isn't a venture most buyers prefer, stemming from the lack of trust in the performance of the product.
Our partners have developed a light that is tuned to yield the best performance throughout the plant life cycle, including the intensity required to distribute light throughout the plant's levels. In addition the thermal management system has been carefully designed to enable the light to perform as it did the first day and last its full 50,000 hours.

Variations of bulbs include 440nm, 470nm, 640nm, 660nm, and white light (for trace amount of light needed by plants, like people, plants need small amounts of minerals and vitamins). More details on these products are coming soon to www.earthsolutions.com.