The Grote 18.26" LED WhiteLight Rectangular Dome Lamp is the perfect choice for any lighting application. This designed to provide superior illumination and long-lasting performance. The lamp features a rugged polycarbonate lens and a sturdy one-piece aluminum housing for maximum durability. It also has a built-in automatic thermal protection mechanism to protect the lamp from overheating. The lamp also features a circuit board protection in full with encapsulant potting and an internal cut-off switch that resets itself to guard against excessive current. FleetPride is your First Click in Heavy Duty .