18 x 5W Osram high power LEDs combined with our ‘Optic DriveTM’ technology to capture and focus more of the light generated to produce an extra-penetrating light output and eliminate waste. The result is 30% brighter light output than compared to a conventional LED light bar of the same length. Light bar contains Osram high power LEDs in a one-piece die-cast aluminum housing with 580mm pre-wired lead, genuine Nitto breather vent and weatherproof DT connector.