Specifications: Product Type: LED Grow Light LED Quantity Each Lamp: 144PCs Material: PC Feature: 3PCs Adjustable Lamp Heads Input Voltage: 85~265V Working Temperature: -20°~40° Life Time: 50000 Hours Lighting Range: 2-3 Square Meters Size: 221x300mm Application: Greenhouse, Growbox, Grow Tent, Indoor Garden, Indoor Potted Landscape Features: --- Made of PC, lightweight and durable with good heat dissipation. --- Low Consumption and Environment Friendly. --- IP20 Waterproof, no need to turn it off when watering the plants. --- 360° all-round heat dissipation,Promote plant growth. --- Easy to install, no tools needed, just screw the lamp well into E26/E27 lamp holder. Product application: * Brand new and high quality. * For All kinds of flower plants : Like for tomatoes, chilli , eggplant , Rose ect. * All kinds of greens : For herbs and leafy vegetables, lettuce , bok choy ect. * Also suitable for Indoor garden or indoor potted landscape. * Using: For Greenhouse,Grow box,Grow Tent, Hydroponics Systems equipment. Blue Light: High absorption by chlorophyII and carotenoids, big influence on photosynthesis.For plant growth and absorption. Can enhance chloroplast activity, to prevent spindling plant, But on the other hand, it will inhibition of photosynthesis, so that the plant need much blue light. Red Light: ChlorophyII absorption rate is low, has a significant effect on photosynthesis and photoperiod effect.For plant flowering and fruiting，Promote plant growth, germinatiion, flowering, results. The most dominant role during adding color on the plants, accelerate photosynthesis. 1 . 280nm ~ 315nm influence on morphological and physiological processes is minimal. 2 . 315 nm ~ 420nm chlorophyll absorbs less impact photoperiod effect, prevent stem elongation. 3 . 420 nm ~ 500nm (blue) chlorophyll and carotenoids absorbed the largest proportion, the greatest impact on photosynthesis. 4 . 500 nm ~ 620nm dye absorption rate is not high. 5 . 620nm ~ 750nm (red) chlorophyll absorption rate "high", has a significant influence on photosynthesis and photoperiod effect. 6 . 750nm ~ 1000nm absorption rate, stimulate cell elongation, impact of flowering and seed germination. 7 . > 1000nm converted into calorie. Note: 1.Please allow 0.5-1 inch difference due to manual measurement. (1inch=2.54cm) 2.The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding.