After the reviews I have seen of these bulbs I expected them to be good but I was totally surprised. I have fitted in a 2019 Ford Transit MK 7.

Install went by the book, couldn't be easier once I saw the HR Video on installing H4 bulbs.

My first drive at night was a complete revelation, very powerful lighting, with an excellet beam patten so I don't dazzle oncoming traffic.

I highly recomend these bulbs, really a night and day difference to your vehicle.

I'm a long time user of Hella H4 lights, first time for LED. Back in the early 80's when they were illegal for road use I had them, with 100 watt halogen bulbs. These LED's are as bright as they were, and the color temp is much better. My current set up is stock lamp housings on a Honda Element, and except for some minor shadows, they light up the road very very well. Aiming is critical to getting the light just right. Spent a few nites between each adjustment, and now they are dialed in. Have not been flashed by oncoming drivers. Light scatter is minimal, and beam pattern good. Highly recommend these, if they fit in your budget. Funny, after using these for 3 months, other vehicles lights appear yellow.

still have not received these lights horribly slow delivery.

Bought a pair of GTR Ultra 2's H4/9003 for my 1983 Mercedes 240D. These fit in the stock 7" round sealed beam housings, even with the fan on the back of the bulbs. The LED module fits behind the headlight door on the W123 body cars. Direct plug-compatible replacement, super easy and super quick.

Great design. Really appreciate the detachable collar.

These are, by far, the brightest bulbs I've ever had on a vehicle! The low beams on these are easily twice as bright as the Sylvania halogens they replaced, and the high beams light up the road like daylight. I can see the road I'm on, the next 4 roads, and my entire future.

The "cool white" color, matches modern car's stock LED bulbs, but the brightness and light throw on these is like nothing else on the road. Will absolutely be purchasing for my other vehicle!

-1 star for the political statements on the packaging.

removed battery and window wash container / installed original rubber boots / installed bulbs in headlights (a little tricky to get spring clip closed with rubber boot installed) but fits together no problem / only thing I didnt like to much is I cant turn the bulb to be vertical to copy the orientation of the stock halogen bulb / the lights are very bright and shoot at least as far as the halogens but much brighter / I do not get flashed from oncoming traffic and did not adjust the headlights from where they were with the halogen bulbs / expensive but worth it / did not give full rating as I could not adjust the bulb so the led mounting strip is vertical

Upon initial installation, the bulb wiring were easy to zip tie out of the way and get everything situated. The gripe I have with the bulbs, the driver side bulb had a crisp clean line, like all the reviews that Headlight Revolution had stated. On the other hand, the passenger was very scattered and didn't have a definite cut off. I attempted to adjust the passenger side but that had no affect, just changed the angle of the horrible beam pattern. I thought this may stem from my housing/reflectors so I switched the driver to passenger and passenger to driver and the bleeding flood followed the passenger bulb. So if they were of equal quality, I would 100% recommend these, but they are not.

The headlights are exactly what is advertised. They light up a broad and intense beam without hazing the oncoming vehicles. The high beam is a very concentrated hotspot making night highway driving and off road much more comfortable than stock. I had a problem with the installation on the 2016 Tundra. Not enough info in instructions or YouTube videos, also had some issues with customer service at HR. Was able to get it sorted out with Ralph, he understood what my problem was on the backup lights and helped me, the install of the Ultra 2 headlights problem was corrected by disassembling the light to get it installed properly, without damaging the OEM equipment. Thanks for your help Ralph!

Bought these as a replacement for the halogens on my wife's MINI Cooper. Was initially concerned about figment but after being assured that if they don't fit behind the cap, I could return them, I bought them. They installed easily enough and after some measuring, I was able to make very slight adjustments to the elevation to have the same beam pattern as the halogens, only A LOT BRIGHTER.