Quick Details Item Type: Grow Lights Light Source: HID Input Voltage(V): 250 Lamp Power(W): 1000 Lamp Luminous Flux(lm): 140,000 Lamp Luminous Efficiency(lm/w): 140 CRI (Ra>): 25 Color Temperature(CCT): Cool White Working Temperature(℃): -10 - 40 Working Lifetime(Hour): 20000 Certification: CE, FCC, RoHS Brand Name: OEM Emitting Color: White Place of Origin: Jiangsu, China (Mainland) Mean Output: 120,000 lm Warm-up time: 4 mins Hot Restart time: 1~2 min Burning position: Horizon +/- 15° Diamerter: 30 mm Max overall Length: 394 mm Operating voltage: 250 V Operating current: 4.0 A CCK: 2000K Bulb designation: UV http://www.unigreen-tech.com/