7440 7443 T20 LED Strobe Bulb White Back-up Reverse/Signal/Brake/Tail/DRL Light. High Brightness LEDs: Contains 36pcs super bright 3030 LEDs, significantly brighter than stock tungsten lamps. Long Lifespan: Durable design with a lifespan of over 50,000 hours for reliable long-term use. Universal Compatibility: Fits multiple base types including 7440, 7443, 4257, 1157, 1156, and 3157. Custom Logo Service: Offer laser etching or printing of custom logos on products upon request. Multiple Color Options: Available in White, Amber, Red, and Switchback configurations. Comprehensive Warranty: Covers 1-2 years with free product replacement for any issues arising. Rigorous Quality Testing: 100% rigorous aging test and comprehensive inspection before every delivery. Waterproof Design: Constructed with aluminum heatsink and waterproof resistance for durability.