The Truck-Lite O.R. Out Phase Strobe Light Lamp is the perfect solution for refrigerated trailers. Its surface mount design eliminates the need for large hole cut-outs in the trailer ceiling, while its white housing design blends well with the interior of the trailer. This turn signal light is available with an integrated on/off switch as well as an externally controlled version. The lens design recesses the lens into the housing to prevent damage from impact. This turn signal light is easy to install and provides reliable performance. It is the perfect choice for any refrigerated trailer. FleetPride is your First Click in Heavy Duty®.