About this item The DC-DC voltage reducer converts 120V, 108V, 96V, 84V, 72V, 60V, or 48V down to 12V, operating at 180W power with a 15A current. Please ensure the working power of your battery pack does not exceed 180W. Featuring a laser print on the surface and an easy ventilation design with an aluminum cast shell, this product comes in a completely sealed water-resistant case. Included are three wires for installation: a merged ground wire for convenience, a red wire for positive input, a yellow wire for positive output, and a black wire for ground/negative connection. The device is equipped with internal short circuit protection, over-voltage protection, and thermal-load protection. This reducer is suitable for use with scooters, bicycles, vacuum lamps, electric snail horns, golf carts, forklifts, and buses. Dimensions: 5.6 x 2.1 x 1.5 inches.