... protection requirents.2. Up to 80% energy saving than standard incandescent lamp3. Long life time: Average life time is 8000 hours ... inside ,instant start ,noise and flicker free6.Tri-phosphor fluorescent tube ,high color rendering index. Application:Home, Offices, Shops, Department Stores ... , table lamps, wall lamps, ceiling lamps. T2 Spiral Energy Saving Bulb 5w-20w