Product name:Motorcycle Headlight O/I Control Switch,Colour:black Mount hole diameter:22mm/7/8’Handlebar,Suitable for 12V battery installation motorcycles,electromobile,ATV,scooter. Easy assembly,It comes with two connecting wires:red and blue.the red cable connect battery positive,the blue cable connect equipment positve. Total size:37x 58mm/1.4’x2.2′(w*h),connecting line length:50cm/19.6′,case material:aluminum-alloy. Package content:1x Motorcycle Headlight Control Switch. Product description This Motorcycle light switch will fit on all motorcycles,electromobile,ATVS,scooters and snowmobiles,fit 22mm/7/8’handlebar,could be used on DC 12V electrical system