Vehicle DIY: Convert Sealed Beam Headlights to H4 Halogens
An easy upgrade for anyone with a screwdriver
Published in
3 min readJul 6, 2021
Does your vehicle use older sealed-beam headlights? Sealed beams were introduced in the late 1930s and standardized by law on most US-market light trucks and cars after World War II. One of the main disadvantages of these are that they have integrated bulbs, so when they burn out you need…
