... :2*14W,3*14W,4*14W,2*28W,3*28W,2*35W,3*35W,2*54W,3*54WBody/Housing Material 0.4~0.45mm ... .BallastHigh quality electronic ballast with CE,ROHS,CCC certification0.99Power factor, THD<10%,EMC Passed,3 years warranty.Tube10000Hours and 30000Hours ... high efficiency and no flick,energy saving very much. Also, ceramics technical in T5 tube make 30000Hours lifespan tube.More quality and efficiency.3. Quality ...