MyTrickRC's Attack 17mm Yellow Halo Headlights, are high brightness headlights for your 1/10th scale vehicle. The super bright LEDs on the Attack 17mm Halo Headlights are carefully chosen for optimum brightness, performance, and durability. The smartly designed Halo Headlights can be used with any MyTrickRC Controller, however, to get maximum brightness, power them from a DG-1 Dragon Controller, or one of the Light Bar Power Regulators. When powering off a DG-1 Dragon, plug them into the black ports, just like a light bar, then you will have 3-Level brightness control. This is ideal for taking pictures, and when crawling, crank them up to FULL BRIGHTNESS for an awesome explosion of light on the trail.