Trail light super brite LED - universal light kit with long life LED bulb technology. Superbrite light assembly is a 8x1-inch quick release light fixture for easy removal and mobility. Once separated from straps, the back plate magnet allows for the light fixture to attach to any metal surface. Easy installation with wraparound hook and loop fastening system for square or round bars up to 4 inch dimension. Uses three AAA batteries (not included).