Westins circuitry is designed in-house to be more powerful more efficient and to generate less heat. Our LED Light Bar housings feature heat sinks designed to keep inside temperatures at a minimum allowing our LEDs to run cooler and brighter. We then give our housings a high quality powder-coat and finish them off with a custom-molded rubber seal and an unbreakable scratch resistant lens. Mounting hardware included. Product Features:Featuring Cree 5 Watt LED Chips6063 Extruded Alum. Housing w/Custom Oversized Heat SinksLexan Polycarbonate Front CoverZamak End Plates And Mounts50 000 Plus Hours Life SpanIP Rated At 68Instant On/Off OperationGore Pressure Equalizing VentZERO UV EmissionsAmperage Required Much Less Than Compared To HID LightsPWM Thermal Management Regulation