The Blacktips 140 watt 20 LED (20 x 7 Watts) industrial work light offers outstanding light output (140 lumens per watt) and includes all the mounting hardware (single stud mount or trunnion bracket) to make installation easy, solid and adjustable. Manufactured to military standards and fully potted, each light will withstand vibration up to 21Grms. Perfect for heavy equipment, machinery, agriculture or any other industrial or marine application. Internal protections include reverse polarity protection so don’t worry about damage due to incorrect installation (wiring the light fixture backwards). Electronic thermal management or ETM protects against thermal overload and will actually manage light output while the unit cools down insuring uninterrupted service.