MotoCityTM 12V 24V Male Car Cigarette Lighter Socket Plug Connector On Off Switch 5pcs/pack There's a 10A fuse to protect the line safety In the plug. With on-off switch. the switch with indicator and it will lights up when it works. Avoid connecting car circuit, makes it more convenient and simple. Using high-quality copper, prevent the insulating rubber from sticky, and the wire core from becoming brittle black. With fuse.