Specification 1. 300W(144*3W) LED Grow Light with Metal Shell, 144pcs 3w LED, constant current power supply, high performance, low consumption 2. Input voltage 85-265V. It is convenient and safe, suitable for any country. 3. LED lifespan: 50000 hours 4. 6 PCS fans built in to cool down the temperature, which keeps the item running well. 5. Application for all phase grow,flower,friut. 6. Different ration optional, Red is good for flowering, budding and blue is good for vegetative. Different plant need different ratio 7. Environment-friendly, Don't contain the harmful substance Carton box,560*405*340mm /2PCS,GW,19kg/2pcs Feature 1) 300W (144*3W) can replace 600W-800W HPS Grow Lights, Save 80% on electricity. 2) 3W high power LED as a lighting source. 3) Lifetime over 50,000 hours. 4) We usually provide the ratio is 8:1, 7:2 and 7:1:1 Red &Blue & Orange& White, Mixture to plants. 5) We have 620-630nm and 660nm of red, 450-460nm and 460-470nm of blue wavelength provide. Red is good for flowering, budding and blue is good for vegetative, you can choose the wavelength and color ratio which is most suitable for your plant growth. 6) Built-in cooling system to solve the heat dissipation excellently 7) Built-in power supply, CE approved, No setup required, just simpler and safer plugs directly into AC120V/220V, no reflector & ballast needed. 8) Ideal for all phases of plant growth, and works well with any indoor garden, whether hydroponics or soil based. 9) The lighting area and height above the plant can be changed according to different plants and environment,and also technical parameters are changed. 10) Optional: 50W, 90W, 120W, 150W, 200W, 300W, 600W, 600(288*3W) Standard industry package: inner box:555*383*160mm/PCS Carton box:560*405*340mm/2PCS