Feature: 300% Brighter Than Halogen: With a luminous flux of up to 12,000 lumens, 50W per set, 6500K cool white, upgraded H4 LED headlight bulbs improving your visibility by up to 300%. Let you see farther and wider in the night-time driving. 10 Minutes Installation1:1 size halogen bulb design, suitable for 100% of the vehicle aembly.: No additional adapters and transfer chucks are required to install the bulb. No noise :EMI drive, no radio interference, no fan noise. 99% Vehicles Compatible: Built-in intelligent IC driver and high wattage close to stock bulbs, make the H4 LED bulbs better compatibility. Work well with 99% of vehicles system. Canbus ready and error free. Plug and play. 50,000Hrs Life Span: We do not want a bright LED headlight bulb that need frequent replacement. The brighter the light, the more heat it produces, so shorter its life. 300% brightne Upgrade H4led Excellent Beam pattern No adaptor and transfer chuck required, 10 minutes plug and play 1:1 Beam design Superior Cooling System & Long Lifespan