The headlights on my Renault Kadjar are so much better now that I changed the H7 standard bulbs for the Philips Racing GT200 H7 bulbs. The pack promises a beam of up to 150 metres in length, and we saw 157 in the light lab, despite our three-lux cut-off, which was good enough for the runner-up spot. Meaning that not only is the WhiteVision Ultra light beam of a much crisper, whiter hue than a standard halogen, but it is also perfectly road legal. With their optimised high-precision filament geometry, up to 13-bar high-pressure gas filling, high-precision chrome coating and high-quality UV-quartz glass, Philips RacingVision headlight bulbs set a new standard in automotive lighting, allow for a more relaxed, controlled and fun driving experience. Please use our online xenon HID bulb finder if you're not sure which HID bulb fitting you need in your car.

The headlight units on the 10 year old Mazda are poor - even after cleaning them and getting rid of all of the nasty deposit that had built up on the polycarbonate lens over time. Just as with the performance version (below left), we suspect build problems with this pair, because their performance proved to be no match for not just the X-tremeVision, but also stablemate Ring’s standard bulb. It was a relatively distant runner-up to the Philips in the FOM and 30-lux area tests, and in the top three for peak brightness, but it struggled for distance.Our Philips RacingVision GT200 headlight bulbs got a great review in the original Auto Express test and therefore it was not unexpected to see them performing so well in other bulb tests. The RacingVision GT200 is truly a landmark Maximum Performance bulb, offering up to 200% more brightness than a standard halogen headlight bulb. Bulbs are placed in a headlamp - a reflector type from a Fiat 500X for halogen bulbs, projector from an Audi A3 for HID - allowed to burn in to settle output, then an image is taken of the beam pattern on the wall. Excellent bulb, very easy to fit, a great increase in brightness compared with my previous 150% bulbs.

Amazingly, these game-changing features come at no cost to legal usage: the Philips RacingVision GT200 has been rigorously designed in adherence both to Philips' own meticulous quality control processes, and ECE homologation standards.Philips may have taken both wins here, but it has not all been plain sailing because a poor sample, which failed to meet the minimum ECE light output, meant we did not rate the Xenon Vision. Its performance also needs to be viewed in the knowledge it was achieved with bulbs made by the now-defunct Tungsram (formerly GE) in 2021. On country roads the benefit is even greater - you see further, with clearer detail in foreground and distance and thereby avoiding potholes etc. As a leading lighting solutions company for the automotive industry, Lumileds is licensed to use the Philips brand for its automotive lighting and accessories product portfolio. We are committed to producing best-in-class products and services in the Original Equipment Manufacturer (OEM) market and automotive aftermarket.