1. Aluminum + PC tube. 2. Size: D30*600mm, D30*1200mm, D30*1500mm, customer size acceptable. 3. LED lamp quantity: 144PCS for 600mm, 264PCS for 1200mm, 384PCS for 1500mm. 4. Power: 8W/15W/21W. 5. Luminous Flux: 720Lm/600mm, 1320Lm/1200mm, 1920Lm/1500mm. 6. Lighting Angle: 140 degrees. 7. Color temperature: Pure white (6000~6500K), commercial white 4000~4500K), warm white (3000~3500K). 8. Beam distance: 3~5 meter. 9. Light fading: 5% after 1000 hours continues working, no more fading since then. 10. Working Voltage: AC85-265V. 11. Lifespan: >40000hrs. 12. Operating Temperature Range: -40 degrees centigrade +80 degrees centigrade. 13. No UV or IR radiation. 14. High brightness and efficiency, energy saving, over 80% electricity saving than normal fluorescent lamp. Application: They are designed for hotel loft, supermarket, factory, waiting room, shops, office building, school and living room.