Latest generation super bright LEDs (72 LED diodes), 1.5 watt, 100,000 hour 20% brighter 18 LED modules, each module including 4 x 1.5W LEDs 19 front flash patterns and 3 rear traffic director flash patterns Take-Down Lights & L & R Cargo (Control L & R Cargo Lights) have four modes: lights on steady, lights on alternatively, flashing simultaneously or flashing alternatively. Both Take Down Lights and Cargo Lights can flash together with the main flashers. Control box with front and rear on/off switch & flash pattern controls Dual board aluminum alloy housing provides heavy duty and maximum durability IP67 or higher dust and moisture resistance Low profile with low drag design to improves fuel efficiency 10 G-force shock, vibration resistance designed to resist daily punishment Adjustable no-drill roof mount with roof hooks/brackets and hardware 7.5A maximum (1 ~ 6 amp typical) current consumption DC 12V (10.8V ~ 13.8V DC range) operating voltage