The 670 XD LED work light offers a safety solution including improved light output, glare reduction, and light placement for heavy-duty trucking on-road. With the addition of a SmartHeat heated lens, you'll find better and long-lasting visibility in any condition! (Note: Not meant for high speed plowing.) Features: Available with an SmartHeat heating system that automatically de-ices headlight according to ambient temperature, Low profile design deters ice build-up, Multiple beam patterns available, UV-resistant polycarbonate lens for rugged durability, Universal mount. SmartHeat Heating System: The heated versions of the Model 670 XD feature a thermally conductive grid system that will de-ice the lens up to twice as fast as other lights. This systemwill turn on when the light is on, generating enough heat to prevent ice build-up. The SmartHeat Heating System will turn off automatically when sensing that the ice & snow build up is gone and light is at a warmer temperature.