Solar Warning Light factory This LED Solar Barricade Light takes away the worry about dead batteries. Set and forget this low-maintenance, high-function barricade light for jobsite safety zones. Light features adjustable three-way output (on/off, steady burn or flash) that's visible from 3,000'. Flashes 60x per minute. High-impact, all-weather polyethylene case withstands UV rays for long life. Solar-charged battery operates five nights after charging just one day. Light turns on at dusk and off at dawn and swivels 360° on base for maximum visibility. Available in amber. Internal solar panels trickle charge (4) "D" cell batteries, which are not included, to give a superior long lasting more reliable power source ITE compliant Type A, C and 3-way, 3v high efficiency lights Rugged copolymer case, solar panels are internal providing less chance for damage and theft, breakaway candle Includes: Barricade light, (1) switch pin, (1) 1/2" x 3 3/4" tamper-proof mounting bolt and (1) wrenchSolar Warning Light factory website:http://www.starryenergy.com/solar-light/solar-warning-light/