MUMASHA LED Headlight Bulbs Headlight bulb H4 9003 Hi/Low All-in-One Conversion Kit Led headlights with 6pcs2 CSP Chips 10,000 Lm 6500K Cool White Beam Bulbs IP68 Waterproof

They have a slight flicker when operating as running lights and noticeable hum when the car is off but besides that they're worth the price. I'm sure more expensive lights work better but that's why these are more affordable.

The H1 bulbs are bright and appear to be built well. I've only been using them for a few days so I can't say how long they will last. That being said, they don't fit correctly in my car. If you are looking for an easy bulb replacement for your 2004 Acura RSX, look elsewhere. If you do, however decide to ignore my warning and forge ahead, I did eventually figure out a way to make them "work". I said they didn't fit correctly, not that I didn't install them anyway. :) Full disclosure, it was a huge pain and the end result was at best mediocre, bordering on sketchy so if you're alright with that, read on. Otherwise, save yourself some time and stop reading here.Installation(ish): The bulbs technically fit the socket in the headlight, but the Acura RSX uses a plastic adapter that goes between the bulb and the electrical connector. The adapter serves 3 purposes: 1.) it has tabs for the retention spring to push against to secure the bulb, 2.) it has a round cylinder on the back to seal against the rubber headlight boot, 3.) it has connector terminals for the electrical plug. The issue is that the LED bulbs have a big heatsink on the back so I couldn't use the factory plastic adapter plug. This meant that the retention spring didn't hold the bulb in place unless I bent the retention spring arms inward. It also meant that the rubber boot didn't fit so I had a choice to make. I could either return the bulbs and be sad or I could modify the boot and spring and forge my own destiny. I'm stubborn and cheap so I chose the second option. I trimmed back the rubber on the small side of the boot so it would go around the narrow end of new bulb without interfering with the retention spring. I also did that so it would still work on the stock adapter plug if I had to put normal bulbs back in someday. Then I discovered that I had to put the rubber boot on the bulb before I put it in the headlight assembly because the big heatsink on the LED bulb prevented me from putting it on afterwards. This created a secondary issue because there wasn't very much space to work with and I had to turn the rubber boot inside out so I could reach the retention springs, bend the arms around the boot and then bend them again so they would hold the bulb in place. After an hour of fiddling around, the bulb was loosely held in place, the rubber boot loosely covered the bulb opening, and the spade terminals were loosely plugged into the electrical connector, so I guess you could say that I was loosely satisfied. Then came the sheer joy of repeating this brilliant process on the other side. Unfortunately, I don't have pictures because there wasn't enough room to see anything so you'll just have to use your imagination. In the end, I like the way they look and how bright they are but I wouldn't buy them again because they just don't fit correctly.

I don't know these things were cheap but the power on them is insane they got the little fans built into them so they keep them cool it's definitely the way to go I put them in my scooter

Great cheap, bright

Took me a little bit of fiddling to get it to have the low beams at the bottom. The Toyota Highlander's rubber seal that covers my old bulb doesn't fit on this without modification because the hole was too small. But it now looks good. I am dreading our Virginia state inspection, hopefully they don't reject it.Edit: almost a year later, working great. The Virginia inspection mechanic said the bulb was fine and legal, not too bright. However, he said my old bulb was too dim and he could fail me for the mismatch, he said put that matching LED in ASAP. Now I have to figure out where I stored it. :-)Another thing that happened, my new LED low beam went dark at about 10 months. I swapped it with the other side and it worked fine. The fuse was blown. I think the little fan in the light was stopped. I saw grit in the fan, so I blew it out really good and then it was spinning fine. Not sure if that would blow the fuse or what. Replaced the fuse and all is well.Edit #2: One of my lights went dim just after a year. interesting that it did not go completely dark. Two of the six or whatever LED squares were not lit causing the whole thing to be much dimmer. That's another advantage over incandescence, those go completely dark, while you are driving! So, I bought a new set and replaced them both. As before, I think the fan stopped spinning, but instead of blowing a fuse, it over-heated. Now I have a spare! I don't blame the quality of the blade, I blame dirt getting into the fan. Need to figure out how to shield them from road splashes.

Put this on my 2001 zx12r and that made a world of a difference at night. Highly suggest. No mods needed to be made

I have a 2005 scion. Headlights are scratched and foggy. I would frequently check to make sure my lights were even on. When these it’s obvious they are on. They light up the whole parking garage. Not much of a difference between the standard setting and the brights. I honestly can’t shut up about them. I’ve recommended to several friends.

These were the first LEDs I've tried for my 97 Odyssey. They were more illuminating than my old OEM halogens, but the beams were quite unfocused and I could not be certain, when I clicked my hi/lo selector, which beam was supposed to be high and which was low. Too diffused.Amazon allowed me to return the first pair and sent me a second, same result. I can't recommend these for an older vehicle like mine. I did find some LEDs that work wonderfully, but at 3 times the price! Sent the second pair back as well.

They're a good quality led bulb for the price, but you get what you pay for. I've had them installed for 2 months now and I've had no issues, install was just as simple as a regular halogen bulb and they worked right out of the box. The fans aren't too loud and they give off a good beam of light. If you find they arnt working just flip the plug around and they should light up as they are directional plugs.I bought a set of 9005 bulbs for my headlights and H11 for my lowbeams. I choose to buy these instead of buying a light bar for driving at night and it was a good investment. They're slightly brighter than stock halogens, and the white light makes a big difference. But if your looking for super bright leds your in the wrong place. These are economy bulbs yet still good quality.These are great for my daily that I drive to work but I'm not sure if I would put them in the family vehicle that my wife drives. I'd like something that puts out more light for her vehicle. I would definitely recommend these as a cheap replacement and I would buy them again.

Hi beam and lo beam are inverted.. so at night I leave it on DRL or else I can see legal problems .. tend to flicker for short periods of time. No error codes, very bright. For the price it's decent. Would recommend for lo beam or fog light application

GOOD QUALATY EASY TO INSTALL

Not bright enough, but it is good.

purchased a more expensive brand to compare only to realize these were identical except for the color of the housing !Running the same brand only H4 style in 3 other vehicles and seem great.....Will know more after running for a period of time