H4/9003 LED BULBS | HEADLIGHT AND FOG LIGHT BULB REPLACEMENTS

Upgrading your vehicle to H4 LED Bulbs gives a modern look to your lights. The H4-size bulb is most commonly used as a headlight by many OEM manufacturers including Toyota, Mazda, Subaru and more!

Diode Dynamics is proud to offer plug-and-play upgrades for vehicles using H13-size bulbs. Our H4 SL2 Pro LED bulb replacements drop right into place of your stock incandescent bulbs, with no modification required!