COOLHEAD LED head lamp - H8 H11 - Ultra high efficacy - Low heat - 2pc set Super bright 4000 Lumens per bulb, highly reliable LED head lamps No cooling fan needed - Ultra high efficacy (160 lm/W) LED chips make the bulb bright and cool, micro-trench heat sink structure for efficient heat dissipation Long lasting and reliable - No moving part make the LED reliable Retain original headlamp light allocation design, No glare to other Drivers - LED design mimics original/Xenon bulbs Adjustable locking plate and heat sink