To increase safety and nighttime visibility for the driver, these new high-output car LED lights create a 4,000Lm blanket of light. The smaller chips have excellent heat dissipation characteristics, making the H4 bulb reliable even in harsh environments. The internal driver components were designed by Samsung and offer excellent performance in a smaller package. The adjustable heat sink makes fitment issues a thing of the past. It's removable to reverse install or mount outside the headlight back-cap for added adaptability. Upgrade your car lights for better illumination and increased reliability. Product Features: 4,000 Lumens, Compliant 6000k Color, No Flickering/Flashing, Non-Glare-Engineering, Extended Durability, Efficient Lighting, Can-Bus Compatible, Self Regulated Cooling, Fewer Points of Failure, Instant Start-up Light, No Relay Harness Needed, No High-Draw Ignition, Less Amp/Power Draw, One Bulb High/Low Beam