The OTR 4" Round 24-LED Stop / Turn / Tail Light boasts Expertise Built In™, providing powerful safety lighting for your semi truck and trailer. This light boasts 75% less energy consumption, increasing battery and alternator life. With a minimum of eight tests including vibration, moisture, salt spray, high/low temperatures, durability, and photometrics, verified with independent laboratories, this LED light is built to keep you and other drivers safe. With easy installation, this enduring LED turn signal light replacement offers excellent energy efficiency that does not drain vehicle power. OTR heavy duty parts offer the same form, fit, and function as OE. With comprehensive research, independent testing, and continuous product development, OTR heavy duty parts are sure to keep you and your truck safely on the road. In addition to providing the highest quality of heavy duty truck and trailer parts, you can rely on OTR warranties to be comparable or better than OE and top brands. FleetPride is your First Click in Heavy Duty®.