4 in Gravity(R) LED Fog Lights are powered by KC's patented Gravity(R) Reflective Diode (GRD) and optical reflectors to deliver an incredible 150 lx at 10m using only .74A per light. Our patented GRD (Gravity(R) Reflective Diode) system aims the LEDs into the precision reflectors to capture all the light and project it forward. This results in a more controlled and far reaching beam pattern than ever before.Dual Oversized Heat Sink Design for Cooler Brighter and Longer Lasting LED PerformanceDuPont(TM) Zytel(R) Carbon Fiber Housing Constructed from an IP68 rated lightweight Magnesium housing and polycarbonate lens creating a fully self contained LED light housing. Fog Beam- Provides a low wide angle light pattern that increases short-range visibility in conditions like dust fog snow and rain.