Power and Value! Features: Polycarbonate Lens Extruded Aluminum Frame Solid Stainless Center Cover Field Replaceable Bulbs Two H-1 55w Halogen Rotating Assemblies Two Flat Mirrors Two V Mirrors Produces 600 Flashes Per Minute 6.5″ H x 14.5″ W x 56″ L 12 Volt DC SAE J845, Class I