... .Warm start 4.25000hrs,2.5years warranty t8 to t5 adapter with reflector Specification:14W, 21W, 28W, 35W1, Energy saving 45% ... ,no noise, low work temperature, low power consumption, good for eyes.6, if With nano anti-oxidation film, can improve the ... Temperature -10°---+40 °Lifetime30,000 hoursRelevant Certificate TUV-CE, RoHS,Warranty 2.5 years Power Factor0.99Optical Data :Light Color Warm White ...