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At Opie Oils, we know how important it is to be seen clearly in poor weather, which is exactly what a good set of rear fog lights is designed for. A rear fog lamp is a legal requirement on every vehicle first used in the UK since 1980, using a much brighter red light than your standard tail lights to alert drivers behind you when visibility drops. We stock a wide range of rear fog lights and rear light bulbs to suit cars, vans and more, including LED and halogen options. Shop the full range below.
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A rear fog light is a high-intensity red lamp fitted to the back of your vehicle, designed to make you clearly visible to following traffic in fog, heavy rain, snow, or spray. Every vehicle first used on UK roads since 1 April 1980 must be fitted with at least one rear fog lamp, positioned on the centre or offside (driver's side) of the vehicle, so it's important to keep yours in good working order.
Under Rule 226 of the Highway Code, you should only switch on your rear fog lights when visibility drops below 100 metres – roughly the length of a football pitch – and you must turn them off again as soon as conditions improve, as leaving them on in clear weather can dazzle drivers behind you and obscure your brake lights. If you're replacing a blown bulb or upgrading your setup, we stock both traditional halogen bulbs and LED rear fog lights, which tend to offer a brighter, crisper light and a longer lifespan than standard filament bulbs.
Whether you're after a straightforward replacement unit or a full cluster, this range covers a wide selection of vehicles. Not sure which fitting you need? Our team of friendly experts are always here to help – get in touch for recommendations and advice, or use our parts finder to find the right rear fog light for your registration. While you're here, take a look at our range of front fog lights, headlights, and wider car lighting collection to keep every light on your vehicle working as it should.
Yes. At least one rear fog light is a legal requirement on every vehicle first used in the UK since April 1980, and it's checked as part of your MOT.
Only when visibility is seriously reduced, generally below 100 metres, such as in thick fog, heavy rain, or snow. You must switch them off as soon as visibility improves, as using them unnecessarily can dazzle other drivers and result in a fine.
In many cases, yes, LED rear fog lights are a popular upgrade for their brightness and longevity. If you're unsure whether an LED bulb is compatible with your vehicle, our team can help you check before you buy.
As the UK's largest independent supplier of automotive parts and accessories, we stock a huge range including hard-to-find fittings, backed by more than 10,000 genuine 5-star reviews on reviews.io. Our team offers free expert advice if you're unsure which fitting suits your vehicle, and every order comes with 60-day returns for extra peace of mind.
Shop car rear fog lights at Opie Oils today, with free UK delivery on orders over £80 (geographic restrictions apply) and our no-leak guarantee on every order.
