Partsam 5pcs 3/4" Side Marker Clearance Stop Turn Tail Brake light LED Amber Lens Partsam ( 5x Amber ) 3/4" Side Marker light Grommet Mount Single Led, Clearance Marker and Auxiliary Stop Tail Turn Light. Led Side Marker Light, Fender Marker Light, Clearance Light, Indicator lights, Aux stop turn tail brake light etc. Can be used as an aux lighting to your existing brake light, but not approved as a brake light. Outer Diameter: 26mm (1.02''); Inner Diameter: 16mm (0.63''); Wire Length: 200mm (7.87'') EASY TO INSTALL - 3 Wire Connections: Black is Negative, Red+Black - high brightness, White+Black - low brightness