Our 60 Series Low Profile Evolution® Bars feature our new belt driven parabolic reflector assemblies, and have the lowest noise level in the industry. They also feature free-form optical technology, which increases the beam pattern of each rotator to increase visibility. This 48" lightbar operates at 12 VDC, 4 rotators, and 2 box mirrors. The warranty is 2 years for the lightbars and 90 days for the bulb.