A nicely streamlined mini-toggle switch because it’s encased in an injection-molded housing, which just happens to fit on 7/8” handlebars perfectly. Which is a good thing if you have an electrical gizmo to activate/deactivate in a nicely streamlined way. Used by itself, it will turn smaller items on (up to 6 amps@12V), but if you are going to switch the big stuff, like really large lights or a 10 foot propeller beanie, we’d recommend a 12V relay in conjunction. Imagine being able to activate your ‘Illuminated Arm Jester’ with the flick of a thumb. Amazing. Also wonderful for electric grips, etc… Comes with an attached 34.5" long 2 wire insulated cord.