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. KC's patented Gravity(R) Reflective Diode system aims LEDs into precision reflectors, capturing all light to project it forward.Die-Cast Aluminum HousingDie-Cast Mounting Bracket with hardwareOn-Board Thermal Management for Light EfficiencyDurable Optical Quality Glass LensSpot Beam Pattern Rally 400s feature a compact 4 in profile with a rugged steel housing makes these lights idea for front bumpers on trucks, Jeeps and SUVs, especially on vehicle locations with limited space. Different beam patterns offer advantages depending on your specific lighting needs. Spread Beam- Provides a balanced wider beam of light that increases peripheral visibility, as well improved forward facing light for an increased range of visibility. Spread Beam Provides a balanced wider beam of light that increases peripheral visibility, as well improved forward facing light for an increased range of visibility.Each Light Sold IndividuallyEasy Attachment via Dzus clip or HardwareFlood Light PatternDurable Optical Quality Glass LensSpread Beam PatternReplaceable Colored Lens Options Two Axis mounts allow users to easily adjust and aim the Rally 400s, for consistent and precise beam output.