LED tubes are widely used for : 1. Office building lighting 2. Hotel lighting 3. Supermarket lighting 4. Warehouse lighting 5. Airport lighting 6. Factory lighting 7. School lighting 8. Hospital lighting 9. Car parking lighting 10. Other lighing. Item no. Hb-st8-18w120 Power 18w Input voltage 85-265v Rated frequency 50-60hz Luminous flux 1620lm Led type Epistar 3528 Power factor >0.92 Cri >85 Color temperature (cct) Cool white : 5700k500k Nature white : 4000k400k Warm white : 3000k300k Pc type pc/ aluminum Size 1200mm*26mm Working temperature -4040 Storage temperature -4080 Lighting efficiency 90lm/w Viewing angle 160 degree. Each tubes packed into a paper cylinder , and 25 pcs into a cartoon , the cartoon size is : 1260*180*180mm.