1. Diameter: 30mm. 2. Length available: 60cm, 120cm. 3. Brightness: 720Lm/60cm, 1350Lm/1200cm. 4. Light fading: within 5% after 1000 hours continues working,within 20% after 30000 hrs. 5. LED quantity:138pcs for 60cm, 276pcs for 120cm. 6. Colors available: pure white (6000~6500K), commercial white (4000~4500K),warm white (3000~3500K) 7. Low heat, high reliability, high Consistency. 8. High brightness and efficiency, energy saving, over 80% electricity saving than normal fluorescent lamp 9. Working voltage: AC85~132V, AC175~264V,DC10.8-35V. 10. Waterproof range IP54, can be used at moist environment. 11. Installation: replace conventional fluorescent after remove the ballast and starter.