... .Warm start 4.25000hrs,2.5years warranty t8 to t5 adapter with reflector Specification:14W, 21W, 28W, 35W1, Energy saving 45% than ... w~110Lm/wTube Diameter:16mmTHD:less than 10%SepecificInput Voltage AC/110V or 220-240VPower Consumption 14w,28w,35w,49w,54wCircuit ... ,000 hoursRelevant Certificate TUV-CE, RoHS,Warranty 2.5 years Power Factor0.99Optical Data :Light Color Warm White,Cool White,DaylightColor ...