... end of the nominal lifeabout 75%(±5%)Number of switching cycles before premature lamp failure≥1,000,000 Times ... Efficiency>=85% (220VAC, 50Hz, FULL LOADED)Working ConditionTemperature:-20 to +50Humidity5% to 90%, Non-CondensingFollowed StandardSafety:EN60598 CE-EMC LVDRoHSLED Panel ... protection, lead-free materials, 5. Long life, up to 50000 hours.6. Wider light emitting dimension.7. Ultra slim ...