H4 led headlight bulb 1. BETTER THAN HALOGEN BULBS: Up to 16000 Lumens. 6500K Cool White. High focus and max light output with a wider and farther area, creates a professional light pattern. 2. PERFECT BEAM PATTERN: These accurate beam pattern is designed according to road-safety regulations for halogen headlights. This means the beam accurately illuminates what lies ahead without dazzling coming drivers, keeping you safer in the dark. 3. KING OF PERFORMANCE: Nuclear Pro 9005 LED Headlight bulb is built to last, longer working life up to 30,000 hrs. 4. EFFECTIVE HEAT MANAGEMENT: 0.8mm ultra-thin high thermal conductivity ultra-thin copper substrate. Strong Heat Dissipation With built-in turbo cooling fan 12,000RPM. 5. EASY INSTALLATION: The radiator parts are only 23.5 mm long and they are suitable for 95% of vehicles. Plug non-polar, integrated conversion kit, plug and play, the installation can be completed in 10 mins.