LED T8 Light Tube, 18W 4 Feet 60 Watt Fluorescent Tube Lamp/Bulbs Replacement - 4 Pack PERFECT AFTER-SALE PROTECTION : Please ensure the packaging is properly intact before signing. If there is any damage of the commodity,please contact with us for a replacement, This product has 24 months warranty. For help, please contact us. ENVIRONMENTAL PROTECTION : No buzzing ballasts. No mercury or hazardous materials. Save 50% on your electricity bill! Replace 36W fluorescent tubes by 18W LED. Reduce re-lamp frequency with a lifetime of 45,000+ rated hours (21 years with 3 hours/day 365 days). USING HIGH-QUALITY MATERIALS : Top quality Aluminum & superior PC Color temperature: 5500~6500K (Daylight white). QUALITY ASSURANCE: 50000 hours life span & 2 years warranty. INTERNATIONA STANDARD : use Single-ended Power. Not necessary to replace lampholder. Remove Starter/Bypass Ballast. Then Plug in and light on right away. No extra replacement parts needed. Replaces 60W traditional fluorescent light tube. Easy Installation. International standard shape for replacing traditional T8 T10 fluorescent tube light.