We are offering energy saving tube (t8).special features: 1. Long lifetime: over 50, 000 hours 2. High-brightness, high-luminous efficiency, 3. Low-power consumption, energy-saving(saving energy up to 40%, when in comparison to t8 fluorescent tube) 4. Resistant to dampness, low-heating and frequent switching with strong resistance to violation, reliable shock-proof 5. Smart, light, quick to start 6. High-light-emitting frequency: 50 to 60khz with no flickering, soft and eye-protection 7. Environmental protection: small amount of mercury contained and carbon-reduced 8. Easy for assembly 9. Its length, shape, tube diameter and color can be easily devised according to customersâ�� varied requirements. 10. 3years guarantee period specified specifications and parameters: demision(mm) lxï�:892x30 lamp base: g13, g5 power: 13w (replacement of general 30w energy saving lamp) color rendering index: 85 to 90ra operating voltage: 180 to 240v lifetime: above 50, 000 hours light flux: 845lm light efficiency: 65lm/w color temperature: 2, 700/4, 500/6, 400k number of on/off cycle: 1 million times applications: widely used in super markets, hotels, nightclubs, disco halls, karaoke rooms, coffee houses, banks, meeting rooms and exhibition halls, exhibition wardrobes, show windows and houses.