The 4 Inch Round 21 LED Back-Up Light Kit is a practical and reliable solution for enhancing visibility while reversing. With its 21 LED diodes and clear lens, this light kit provides a bright and clear illumination. The polycarbonate housing and lens ensure durability and longevity. It features a PL-3 2 pin connection and is 4.31 inches wide by 4.31 inches tall by 2.18 inches deep, making it compatible with most makes and models. Sold individually, this light kit is grommet mounted and operates on a 12-volt system. It meets FMVSS standards, guaranteeing its quality and safety.