I had bought a H4 set for my Sequoia because of the great review that it retains it's beam pattern as OEM. When I installed it and first turned it on it was definitely brighter and almost as good of a beam pattern at a halogen. It was close but not perfect. I guess that varies from manufacture to manufacture, for example my Toyota Sequoia housing will reflect beam slightly different than say a Subaru Forester even though they both use the H4 bulb. When I turned it on, one of the bulb had a buzz to it. Loud enough that you can hear it over the engine noise. I didn't think to much about it and chalked it up to the fan. Even though when I flipped it to high beam then buzz went away. It was odd to me but it was working so I let it be and that maybe it probably needed to break in... as time past, that was not the case. That buzzing bulb ended up going out within a year. I pulled the bulb out and you can definitely smell the electrical burn odor. The low beam diodes was burnt, evident by the black smoke smear on the diodes. However the high beam diode still worked. I wasn't going to drive around with high beams. I made a warranty claim with HR, the process was to cut up the defective bulb per their instructions. I did just that, sent in the pictures to show. HR sent out a replacement. When I received the replacement bulb, I installed it. Tested it out, listen to any abnormal noise from prior experience. Everything goes smoothly, no buzz, and shines bright. Every now and then you get a dud. But a lot of the satisfaction is how well the service handles you. HR has great costumer service and warrantied my defective bulb with no issues. Would definitely shop with HR again on future light needs.

This was simply an amazing upgrade for my 2004 Nissan Pathfinder LE Platinum. Stock lights are boring, but these were the perfect replacement. The beam pattern has a nice, sharp, stock looking cutoff. Money well spent.

Very good product

Great product

H4 installed on a 2010 CRV with DRL function. I have to say that the beam pattern and cut off for a reflector type headlight is 90% close to OEM bulbs which is very good. Passenger side was an easy install but I have to take the fuse box and mounting braket off (2x 10mm hex bolt) to make room for installation at the driver side. Otherwise, very doable. Bulb looks to be of good quility, heavy solid aluminium including the driver housing. Light output was atleast 50-75% more on the road. Adjusted aim down a little bit from stock setting to reduce glare for oncoming traffic. And DRL functions as normal, meaning the high beams are on but are dimmer setting. When you put the high beams on then it's very bright. I think for the price it's 5/5! For light output 4/5 (but again it's 6000k, if it were 5000k then it would have appeared brighter on the road). Durability/ lifespan is to be determined at this time. But it should last at least 3-5 years of regular use with the improved quality of today's LED bulbs.

Love them

I have read and watched alot of LED bulb reviews online and on Youtube. But I never fully understood why people changed bulbs to LED, because the light it produced was horrible and the beam pattern was all over the place.

But when I came across HR and saw their reviews of different bulbs I got curious. So I decides to opt for the S-V.4 V.4 H4 in my 2016 Peugeot Partner (reflector headlights).
I saw on the videos posted that the H11 and so on performed very good, but I never saw the H4 in action. So I was pretty excited of how they would perfom.

They arrived at my house in Norway 8 days after I ordered them. (Cudos for fast shipping:D)
They were super easy to install, and they are really nice and bright and luminates the road a hell of alot better!! And the beam-pattern is wider than with halogen bulbs, but with a nice clean cut-off!
I whole-heartedly recommend these to anyone considering LED bulbs! Forget about the cheap china knock-offs youÄôve probably seen a dozen reviews of, if you buy from HR youÄôll get every penny of your moneyÄôs worth!

Super bulbs!!

I replaced the stock halogen headlights on a 2006 Yamaha Vector snowmobile with a pair of S-V.4 V.4 LED Headlights, H4/9003 Bulbs.

The installation for my application required some minor trimming with a dremmel of the plastic hood material near the headlight housing. Once that was completed, the bulbs dropped right into place and connections were plug and play.

The difference in effective lighting is HUGE. The bulbs give off a bright white light compared to the yellowish OEM halogen lighting.

The bulbs and drivers appear to be of high quality materials.

I have tested the lights since installation and can say that night riding is easier and safer as a result of improved vision and the ability to see further ahead on the trails.

Very satisfied so far.

Wanted to get some better light from my classic Mini without stressing the tiny alternator or changing the look of the car too drastically. Installed these into some Carello H4 headlamps the car had and there were only a few mods to be made. First and most time consuming was fabricating a bulb holder since the standard H4 mounting ring would not work on the LED. I used a 7/8" ID washer that, with some cutting an filing made a u-shaped spacer to hold the lam in place. Some small mounting tabs from another application, screwed in with Lock Tite hold the lamp in the correct spot. Next was the rubber dust cover that needed to be opened slightly to allow the cover to be pulled over the bulb and onto the original Carello mounting ring - there was enough room for some clearance around the heat sink base and the flexible sink was splayed out behind it. The final bit to install was the LED control box. Because of the limited cabling on the S-V.4 V.3 I had to find space inside the headlamp bucket. With the standard English car spec 7" lamp installation, there is a mounting ring that sits inside the bucket that the lamp sits in and the finishing ring is screwed onto. The mounting needed a 1.5" x 2" piece removed from the inside edge of the ring to allow clearance for the control box to be screwed onto the bucket and not affect the mounting or function of the lamp. Finally the wiring from the original headlamp plug was removed from the plastic socket and wired direct to the S-V.4 headlamp plug, since there was no room for both together. Some heat shrink and tape sealed that up. Lamps worked fine, just as expected. Light output was greater, albeit with the modern look of 6000K instead of the 2800K look of tungsten with (possibly) poor grounding. I like this solution better than the bug-eyed look of 7" LED replacements that I feel are out of place on some cars.

Purchased S-V.4 V.4 LED Headlights H4/9003 to replace Sylvania bulbs that were constantly burning out. Can not be happier so far. Bulbs provide a brighter, cleaner white light. Exceed my expectations.