Hella slim 40 black magic led lightbar 12,000 lumens stealth look off road (1) led light bar with mounting hardware. Typical applications would be installations as Hood, Bumper, Ground Bumper and Roof Lightbars. The new Black Magic LED Series Lightbars have an integrated thermal sensor that adapts to the ambient temperature, which not only prevents overheating or LED failure, but also increases light output when the ambient temperature is low.