Check the listing for details. JIANFA Car DIY Switch Paste Type Rocker Switch Off/ON Universal DC12V Switch for. Color: Black, Condition: New. Listed at 12.62 USD. Description: Paste Type DIY Switch Easy to controll the circuit power on/off Attached with black, white ,red leads (Length: approximately 16"IN ) Universal 12V switch for car fog/driving lights, neon lights, LED light etc. Please pay attention to the voltage before ordering to make sure the button switch can work successfully in your area. USING METHOD: *Check the electric product if it is suitable for this switch or not. *Select the suitable size of wire for this switch. by using relay & fuse ,you could prevent the damage of electric products. Recommend not to use over loading. *According to the usage of illumination, select the wire joining method. you can put the switch between power supply & electric product or power supply & relay.