Advantage: Chip-on-board (cob) technique white led package and advanced heat-sink frame design lowers down chip attenuation. Use advanced package way make led's life is much longer than traditional dip and smd white led. Special light-emitting angle of the mixed design. Light out evenly. Isolated light source which is more safe. Benefits: Solid-state, high shock/vibration resistant. No rf interference, no buzzing noise. No fluorescent flickering. No hazard of mercury or lead entering the environment. No danger of broken glass. Maintenance free, easy installation. Long life time 50, 000h. Low power consumption, high intensity. Technical parameter: Shell material: aluminum alloy + pc (clear pc lens, milky pc lens are available). Led source: cob (chip on board). Led chip qty: 64pcs. Power: 8w. Luminous flux: 704lm. Power input: ac 85-265v. Power output: dc 20-25v/400ma. Power factor: 0.95. Working temperature: -20-50 degree. Color temperature: 3500-7000k (optional). Size: 600 x 26mm. Application: Workshop, office, bank, hospital, shopping centre, subway, school, and other indoor places which require light of high luminosity and energy-saving. It is designed to replace directly the conventional t8/t10 fluorescent tube light. Package:cartom Size:64*20*25cm