Rebaydo 2 pcs 5202/PSX24W LED Headlight Bulbs are designed for vehicle headlight or fog light applications requiring 5202 / PSX24W base bulbs, featuring a non-polarity design compatible with both positive and negative ground systems. Operates on a wide voltage range from approx. 9V–40V with illumination starting at approx. 8V, producing approx. 4200 lumens per pair with a approx. Not dimmable due to wide voltage input. Built-in approx. 19 mm cooling fan provides thermal management, with a rated lifespan up to approx. 30000 hours. Dimensions are approx. 2.57 inches overall length × approx. 1.59 inches width at mounts × approx. 1.4 inches bulb length. Rated for approx. 9V–40V, approx. 21.69W at approx. 13.8V (up to approx. 23W) and approx. 1.585A at approx. 13.8V.