This product has a rugged black painted finished Aluminum body and is made from the finest Halogen lights available. It has high brightness and low power usage and waste. Along with the ultra rich vibrant color makes this signal light an excellent value as a Traffic Control or Alert Light. 12VDC (11V-14V). Dimensions: 37.75" x 3.25" x 1.75" w/o Bracket. 37.75" x 3.75" x 1.50" w/ Bracket. 8 - 3.50" x 1.75" with single Halogen Bulb with Refracted Amber lenses. Mountable controller with Off/On switch. 3 Function flashing patterns Flash All and Left or Right direction.