CREE Chip: The H4 LEDs are made with high-quality CREE chips that won't dim over time. Each bulb comes with 4 sets of beads, and the dual-light output design is more perfect than halogen lamps' cutting lines, emitting a perfectly clear beam of light without glare, giving you an extremely wide and clear view for easy driving in the dark or on rough roads. Standard Socket: Designed 1:1 according to the original H4 bulb, it has a better cutting line for high and low beam and works perfectly. The bulb produces 6500K cool white light, which is more than 300% brighter than halogen lamps. Plug and play, no modification required, just unplug the old bulb, plug in the H4 LED bulb and start using it immediately. Wide Voltage: The H4 LED bulb has a wide voltage of 9V-32V DC, suitable for upgrading the headlights of 12V-24V cars. H4 LED can start immediately and reach full brightness instantly, regardless of strong current and voltage. Built-in smart chip for reverse connection protection,