Description: 50W Mini-ufo LED Grow Light (White Housing) Size: 175x 60mm Power: 50W Lumens: 1800 LM Input Voltage: AC 85-265V LED Quantity: 50pcs Color Temperature or Wavelength: Red (630nm or 660nm) Blue(470nm) Orange(610nm) Warm White(4000-4500K) First Generation: 8:1 or 7:2 for Red (630nm) & Blue (470nm) Second Generation: 8:1 or 7:2 for Red (660nm) & Blue (470nm) Third Generation: 7:1:1 or 7:2:1 for Red (660nm) & Blue (470nm) & Warm White (4500K) Fourth Generation: 7:1:1 or 7:2:1 for Red (660nm) & Blue (470nm) & Orange (610nm) Fifth Generation: 3:2:1:1:1:1 for Red (660nm) & Red (630nm) & Blue (470nm) & Violet (410nm) & Infrared (740nm) & Warm White (4500K) Temperature: -20~40íµ Life time: 50,000 hours Features: 1.Unique style, very cute mini UFO. 2.Energy saving, save 80% power consumption comparing with traditional HPS or MH. 3.Long lifespan, over 50,000 hours, low maintenance cost. 4.No need ballast, reflector, it can use independently. 5.Produce less heat, it can be installed very close to the plant. 6.Environment-friendly, no harm to environment. 7.High Efficiency: 90% emitting lights can be absorbed by plants. But for traditional HPS or MH, only 8-10% is used. 8.Blue is good for vegetative and red is good for flowering and budding, you can choose the wavelength and color ratio which is most suitable for your plant growth. 9.The lighting area and height above the plant can be changed according to different plants and environment, and also technical parameters are changed.