1.Power:8W, 14W,21W,28W,35W 2.Certificate: CE,CCC,ISO 9000 3.Warranty: 2 years T5 Energy Saving Light FUNCTION CHARACTERISTICS:1>Phosphorescent tube that provides a perfect lumination.2>High luminous efficency, good color rendering ,low light decay, long lifespan,flicker-free etc.3>High power electronic ballast, meeting the nations's "Green Lumination" request. So it's both energy saving and ...