Headlight Bulb Brightness Comparison — Lumens, Kelvin & Road Legal Limits
Headlight brightness guide. Lumens vs Kelvin explained. Brightness ratings compared (+100%, +150%, +200%). Colour temperature. MOT limits and road legality.
Car Bulbs
Car bulb compatibility guides — the right headlight, indicator and interior bulbs for your car, with fitting types explained.
Replacing a bulb? Our headlight bulb change guide walks you through it, while are LED bulbs legal in the UK? and OSRAM vs Philips help you choose.
How to Change a Headlight Bulb — DIY Guide
Step-by-step guide to changing a headlight bulb on any car. Covers access methods, common mistakes, and when to call a professional.
Car Bulb Types Explained — H1, H4, H7, H11 & More
Complete guide to car bulb types. What H1, H4, H7, H11, HB3, W5W, and other codes mean, and which ones your car uses.
Car Bulbs & MOT — Which Bulbs Are Tested?
Complete guide to which car bulbs are tested during the MOT. What fails, what’s advisory, and how to prepare.
H4 vs H7 Headlight Bulbs — Differences Explained
H4 vs H7 headlight bulbs compared. What’s the difference, are they interchangeable, and which does your car use?
Best H7 Bulbs UK 2026 — Top 5 Tested & Rated
The best H7 headlight bulbs in the UK for 2026. Philips, OSRAM, Ring, and more — compared on brightness, lifespan, and value.