Universal Car Van Truck Boat Battery Master Isolator Cut Off Kill SwitchIgnition power-off system QB-050 ignition switch Ruida universal ignition switch Material: Plastic + Alloy. Specifications:Battery Disconnect Switch, Easy to install,Ignition protected ,Make before break contact design allows switching between battery banks without power interruption. Offers a simple economic way of separating battery. Operating voltage: 12-60(V) Overload current: 300(A) Life span: 10000 (times) Package Included:1x Battery Switch Note: Please allow 2-3 cm difference due to manual measurement. Besides different computers display colors differently, the color of the actual item may vary slightly from the below images, thanks for your understanding(1 inch = 2.54 cm) Colour: Black Size: 43*64mm Delivery Quantity: 1 Piece