Installation guide · Installation Guides
How to Install an H4 LED Headlight Bulb in 10 Minutes
A complete step-by-step walkthrough for fitting an H4 LED bulb yourself, with no special tools required.
7 min read
Installation guides
Step-by-step fitting walkthroughs for LED bulbs, fog lights and accessories, written for DIY installs.
Put this advice to use
Every Gear Hub installation guides is written against parts we actually list, so you can move straight from reading to checking fitment for your own car. Start from your vehicle if you know the model, or from a product category if you know the socket you need.