Electrical Parameters: LED Power: 8.5W Input Voltage: 90—265V Ac Frequency: 50/60Hz Power efficiency: 90% Power factor: 0.95 Dimension: T8 D30*600mm Light source: SMD3528 LED quality: 144P Lampshade material: Aluminum +PC (transparency, milk white) Life span: 50000Hr Environment Temp:-20-- 50℃ Environment Humidity: >95% Optical Parameters: Luminaire efficiency: 90% LED efficiency: 100Lm/W Luminance Flux: 850Lm Color rendering index: 75Ra Color temperature: 3000-4000K (warm white) 4000—5500K (white) 5500—7000K (cool white) Compare to the traditional fluorescent light. LED tube light: Traditional fluorescent light: Led consumption power: 8.5W The fluorescent light power: 40W The driver consumption: 1W The ballast consumption: 7W Luminance Flux: 850Lm Luminance Flux: 1300Lm Illuminance: 33Lux @3M Illuminance: 40Lux @3M