LED bulbs are great for adding light to a garden. Small enough to fit almost anywhere. AgroMax LED bulbs use Generation 3 TRI-BAND technology which is provin to grow plants. Unit has 98 Red, 13 White and 15 Blue LEDs rated at 10w. Plant growth 101:Plants grow by the process of photosynthesis. Chlorophyll is vital for photosynthesis, which allows plants to obtain energy from light. Plants only absorb certain light spectrums, mostly blue and red, while nearly all others are reflected or otherwise unused by the plant. Light spectrums are measured in nanometers or ?nm?. Chlorophyll production is made up of two parts, A and B. Maximum chlorophyll A production occurs at 662nm (for red) and 430nm (for blue), while maximum chlorophyll B production occurs at 642nm (for red) and 453nm (for blue). These are the peak points at which chlorophyll production is maximized, even just a few nm above or below these points will significantly reduce production. Our PHD recommended that we find these exact spectrums to maximize plant growth.Here are some of the benefits of lower heat levels:No HEAT SIGNATURE detectable by infrared cameras.Less heat means lower grow room temperatures and lower humidity, making controlling the micro-environment of your grow room easier to maintain properlyNo high temperature lights to worry about. No hot light bulbs or cumbersome, heavy and hot ballast enclosures either.Light Emitting Diode (L.E.D.) technology is the absolute newest technology in plant growth! These lights represent the cutting edge of horticultural lighting. LED lights are currently being used by NASA for growing plants in outer space!