BOVSUN T8 LED Light Tube,4ft 18W (36W equivalent), 3000K (Warm White), Double End Power, CE-Listed & RoHS-Qualified Pack of 10 Units Quality aluminum housing, good heat dissipation Environmentally friendly.No buzzing ballasts. No mercury or hazardous materials. Easy Installation. International standard shape for T8 T10 tube light. Easily fitted instead of traditional fluorescent tube lamps. Energy Saving. High Efficient Output (116 Lumen Per Watt). Save 80% on electricity bill of lighting comparing with the fluorescent light. If the product is defective within 2 years, please contact us and we will give you a good solution.