1)Use high efficient 1w LED as the light source, Based on 576x 1W high power LEDs. 2)Wide beam angle: 120 degree (larger lighting area),could be customized. 3)Smart appearance: built-in power supply, no need ballast, reflector, it can use independently. 4)Unique heat dissipation device: thermostatically controlled fans to keep LED light cool. 5)Small light decay, long lifespan more than 50000h. 6)Built-in CE approval Power supply, plug and play, no reflector & ballast needed 7)Environment-friendly: have no mercury and other harmful heavy metal, emit no light harmful for plant. 8)Energy-saving: emitting light fully absorbed by plant, much efficiency compared o HID grow lights to produce the same result. 9)Ratio of Red and Blue in R&B is 8:1; we also could change the ratio according to your special requirements. 10)This one also can be LED ceiling light, are very suitable for the large size of the illumination, such as the hotel hobby, warehouse, workshop, station etc . 11) Available: 14W 45W 50W 90W 120W 300W 600W or Customized 12)you can choose the wavelength and color ratio which is most suitable for your plant growth.