Nite rider tl 50 slthe tl 50 sl has five ultra bright leds with four different operating modes including three different flash modes the amber side lights help to provide even more visibility from the sides of the rider the tl 50 sl will help keep you safe and seen from behind features5 ultra bright leds100 hours run timeinexpensive high quality lightsuper bright day time flash mode4 operating modesruns on aaa batteriesfl 1 standard ip64 water resistanttechnical datarun time up to 100h