This Direct Wire Kit is designed for Nightstick and Bayco chargers in first responder vehicles. The kit steps down 36 to 12 VDC to protect against startup spikes and unexpected surges. A replaceable inline 3A glass fuse adds further protection. The Direct Wire Kit comes with an 8' 18/2 SJT cable and plugs into the charger with a standard barrel plug. Two cushion clamps make for professional-grade installation.