Piaa70856 H4 Xtreme White Antivibration 60/55 Watt = 110/100 Watt Bulb - Pair

on one bulb it lasted 8 months in my bike before the low beam burnt out. i like the light bulbs. but the short life of the bulb is my only complaint. the light worked great and did the job beautifully. in fact i purchased two more bulbs and i hope they last longer. maybe you will replace the bulb that went bad...... i thought the bulb had a 2 year warranty. oops my mistake.....i am looking for my box but i can not find it. i love your light bulbs they work great. thanks for making a bulb that works so good .... tom hippchen

When my riding buddy told me that he could barely see my headlamp during the daytime, I started looking around for a replacement. The bulb being replaced was a 8 year old Hella H4, which I put in when upgrading the stock 55/65 watt unit. The difference in light intensity is profound. The new bulb lights up my entire 2 car garage like a halogen work lamp - it's blinding to look at. My new low beam is about as bright as my old high beam - no joke. I was hesitant to buy these due to the price, but I have to say that they are definitely worth it. Highly recommended.

These bulb put out clear white light, and they're a little brighter than stock, but functionally they're not significantly better than the stock bulb that came with my bikes. Luckily, I have two bikes that use the same bulb, so purchasing the two-pack made the price per bulb reasonable enough that I'm okay with them. If I had paid more I probably wouldn't see the value in the product. They're better, but for my dollar the price over a standard bulb doesn't reflect the improvement you'll get.

Fit my 2007 Kawasaki Ninja ZZR600 no problem. Brighter than regular bulbs, a little on the pricy side. HIDs are brighter, but for my instance, i'd have to run the HIDs to the battery and that wasn't going to happen so these do the job just fine. There is no blue (as advertised) so if your looking for a blue hint this isn't the bulb for you, its a bright white.

This is my second set. One of first set lost it's low beam after about 20,000 miles. Maybe this is normal for high powered lights ? I bought a used H4 bulb for my old 69' shaker Electra Glide. It was still working when I sold it 20 years later. The Piaa's are very bright and put out a very white light. A little pricey maybe.

Only giving these bulbs 4 stars because we haven't had enough snow to try them out and actually experience how bright they are. Installing them on 2 skidoo 600 sport snowmobiles that have very dim yellow halogen bulbs from the factory.

Good product but don't kid yourself, I use them on my snowmobile, and they certainly produce a whiter light but not a brighter light than a standard new H4 bulb.

Fit great, are a little brighter and I like the color temp better also. Not sure about longevity, but so far have 10 or so canyon hours and have hit some rough patches vibration wise at high speed, time will tell. I will update if something goes wrong with a timeline.

Installed on a 2017 Triumph T120 motorcycle. Much whiter, brighter and longer throw (both to the front and the sides) than the stock bulb that came with the bike. It might not be better than other, better priced, top end halogens that claim the same specs but it is good. Others who claim not much difference from their stock halogens might have had very good stock halogens. Mine, I suspect, was not because the difference is very noticeable. The 'white' light is probably, as most say, just due to the blue filter on the bulb but it works. A bit expensive but the quality seems pretty good.

As described very bright

Awesome product. Plug and play and much better than stock.

I put them in my Ski Doo, they look awesome and pretty bright

Not as bright as I thought they would be