We use CNC Aluminium alloy, 3 wires of copper material. It is waterproof, anticorrosion, suitable to the rainy day fits for handlebar in diameter: 22-23mm (7/8″ inch). 2.5mm hexagon wrench is also specially equipped Output circuit protection, overload protection, reverse polarity protection, multiple protection, safety to use The product has the pilot lamp,when the switch turn on,the pilot lamp will be lighting,or,the lamp will off This waterproof switch can be used Compatible with spotlights fog lights driving lights daytime running lights etc And will fit on all motorcycles motorbike ATVS scooters Black(positive).Brown(negative).Blue(connect to the equipment,positive) , used on DC 12V electrical system Buy this product you will get 12-months service,hassle-free return and money back policy, buy with confidence! If you have any questions, please contact us by email, we will reply you within 12 hours.