Replaces all H4-style headlight bulbs Uses stock reflector and bulb housing 6000K (6000 Kelvin) daylight white (not yellow) light beam with no blue tint Built-in ballast with active heat-management fan Offers a super bright 2000 lumen LED output (versus standard H4 lumen output of 800-1200 lumens) Draws less than 1 amp compared to stock bulb at 5 amps Easy do-it-yourself plug-and-play installation 20,000 hour bulb life. LED REPLACEMENT H4