1)Use high efficient 1w LED as the light source, Based on 288x 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 morn 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 to 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) Includes a wire hanging kit for easy installation! 11)you can choose the wavelength and color ratio which is most suitable for your plant growth.