Ergon partners with Supernova to create an ergonomic and sleek design to control your bike light. The design allows you to keep your hands on the handlebars and easily switch your bike lights on and off whenever needed. The switch for your lights is constructed within the Ergon grip clamp and can be used with Supernova M99 and MINI 2 PRO series lights. This control is perfectly integrated within the clamp of the Ergon GA3 grip.