The 4 Inch Mirror Round Back-Up LED is a practical and reliable product that fits most makes and models. With its white LEDs and clear lens, it provides excellent visibility and safety while reversing. Featuring 12 diodes and a 12V power supply, this LED is designed to last. Its compact size of 4 inches in diameter and 2 inches in depth makes it easy to install and suitable for various vehicles. With three female terminals, this LED is a versatile and efficient choice for anyone in need of a reliable back-up light.