• FARTHER,WIDER and BRIGHTER - Choose KATANA H11 led headlight bulbs,you will never be Disappointed! Adopted Customized CREE Chips,each KATANA headlight bulb can light up to 5090 lux and 6000 lumens@6500k extremely white light,5 times brighter than halogen.No dark spots! No uneven beam pattern.
  • DUAL BALL BEARING FAN - Unique coverless design efficiently reducing the noise,built with double folding copper core thermal heatsink and coated with aviation aluminum,combined 12,000 rotations per minute,ensure maximum heat dissipation,make KATANA headlight shine up to 55,000 hours.
  • SLIMMEST SIDE DESIGNED - Boldly Utilizing ultra-thin side design,LED side face only has 3.45 mm,ensure 360 Degree uniform light without any dark spot,provide wider viewing angle,ensure your safety.
  • 360 Degree Adjustable Beam Angle - According to the individuality of your vehicle,we have designed the latest 360 degree fully adjustable mounting collar,you can make a simple angle adjustments for proper alignment of the bulb mounts to get the perfect light output and correct beam pattern.
  • PERFECT INSTALLATION - The heatsink part only has 23.5 mm length,fit for 95% vehicle,after installation,there are enough space for the headlight breathing. Can be installed in 20 mins.Plug and play.

I've tried numerous different H11 LED bulbs from many different manufacturers for my projector headlights over the last couple of years, and always been disappointed with either the scattered light or lack of decent output... until now. I ordered these after seeing them reviewed on the Bulb Facts website, and was impressed right away. Once it got dark outside, I found the cutoff to be perfect, and the output was about the same as some previous HID lights I'd had installed! There aren't any dead spots, and the visibility with these is amazing! The light color on these doesn't seem to be the 6500k that is advertised. I'd say it's closer to around 6000k, which I'm perfectly fine with. This may change over time the more I use these, but I'm still very happy with the color! The one and only negative I could see is that there is nothing protecting the cooling fan on the backside of the bulb. This should have no effect on performance at all, however if they are not protected by a dust cover, there is a possibility that loose debris could compromise the fan. Otherwise, these are perfect!

I can't say enough great things about these. I'll begin by saying the stock halogens are good headlights. I do get uncomfortable driving on a dark night especially in the rain. These make me feel confident again. They fit perfectly in the housing (even the wiring and drivers can be tucked into the housing and you can put the dust cover back on without any issues. Getting the bulb in can be a little tricky because Hyundai doesn't really give you much hand room to fiddle around with behind the low beams. It took me a couple of tries before I got the light to lock in place. These are WAY brighter than stock and have a slight bluish hue to them. Definitely make the car look professional. It really is like a night and day difference between the Halogen and these. Worth every cent! The only thing I'm nervous about is these will stay working for a long period of time without any issues. I haven't done any long trips with them yet and being that they are enclosed into the housing with the dust cover I'm slightly worried about them over heating. I'll update my review if I have any issues with them at all. By the way, they are plug and play ready. No need for a resistor etc on the Hyundai. It doesn't trip the cars computer with an error. It also doesn't cause any interference with my radio like some brands seem to do.

Bought these bulbs for my 2015 Camry. They are packaged very nicely and super simple to install. I didn't even have to adjust the fitting to have the proper install. There are no supplied zip ties to secure the driver to something inside under the hood so it doesn't bounce around but zip ties are cheap so it's not a big deal. The bulbs themselves took 2 seconds to install and look great. I have yet to drive at night with them but will update. You can hear the fans outside the car but only when the engine is off so it's not a problem. I'll most likely be buying another set of bulbs for my high beams! 4/3/18 UPDATE: After driving at night I just have to say wow. These are really bright and I can see so much more clearly. I bought the 9005 to replace my high beams and got them today. Once again super easy to install and boy are they bright too. So happy I bought these. I'll take some pictures and put them up soon

I originally was going to purchase Supernova V4 from Headlight Revolution based on a co-workers purchase and how bright they are. But when I started having problems with their customer service and especially after I read all the complaints about customer service on BBB I decided to purchase these bulbs based on a review on BBB that said nothing but they were cheaper and exactly the same as the supernova bulbs. I will continue to purchase bulbs from Katana based on my experience. Thank you for checking on my satisfaction of your product so quickly. I haven't even installed the product at the time of your initial contact email. You have definitely gained a lifelong customer

Unbelievably bright without blinding other drivers! I compared these to Morimoto 2Stroke 2.0's and they were very close with these having a very slight blue to them compared to the slightly whiter 2Strokes. I am using them in a 2015 Tacoma Trd Sport with stock reflector housings. Everything I read said that LED headlights in a reflector housing would blind other drivers. That is just not the case with these LED's. Just to think I almost spent $170 for the Supernova V4's that more than likely come from the same factory in China. If you don't believe me look them up. There are some youtube videos about them by another online retailer. These even have the same exact QC tags in the same location. Please don't spend more than you need to on these. Most of us work hard for our money so I just want to give you guys a heads up before you spend more than you need to on the same exact product. If these by some chance happen to burn out way to soon I will update this review. I really don't expect them to but for sure I will let you guys know.

Just installed on a 2016 Civic. Color matches DRLs. Bulbs already aligned out of the box (make sure the adjustment screw is tight so it doesnt move when you turn to lock the bulb in) The beam is the same as the halogens, so far I only checked from 7 feet away from my garage door. Will update when I can. So far so good. Update: Tested them out tonight, they noticably light up the road much better. I noticed my beam is a bit too high with some scattered glare (due to halogen designed projector lens). I aimed them a little lower and will test them out again. Otherwise they are really bright and the fan is super quiet. Update: after a few adjustments the beam is at a height is good enough. The beam pattern/cut-off line is nowhere as sharp as a factory HID setup like my s2000 but the amount of lumens these leds put out is worth the money for sure

These Katana H4 bulbs were my first experience upgrading to LED and suffice to say I did a ton of research prior to ordering these. After watching numerous video reviews, I had narrowed it to a few choices, the Supernova V4 being chief among them with the most consistent brightness. Unfortunately, Amazon doesn't that sell that particular brand and I was hesitant to dish out the $140+ to a company I had never done business with. After reading a lot of reviews, I came to the conclusion that these Katana bulbs most likely were identical to the Supernova, and given Chinese manufacturing practices, most likely came from the same factory etc, so I decided to take a chance. They were very easy to install in the headlight housing, with the install being easier that a standard H4 because the bulb was removable from the mounting hardware, thus simplifying the process significantly. Made sure to align the bulbs as described in the instructions and plugged the ballasts in to the stock headlight wiring. These lights produce bright, crisp light that is not overly scattered like when people put HID lights in reflector housings. I am very pleased with the results and would recommend them to anyone. The fans noise is so quiet that they can not be heard with the engine on, and barely with it off (but who sits with their headlights on without their engine on anyway.)

Installed these on my 2018 Nissan Frontier. I work 3rd shift and my route is mostly country roads. Had to tweak the aim a little lower, but that's it. I attached before and after pictures, taken on the same stretch of road around 10:30 at night, fully dark, no streetlights around. Light output is certainly brighter, the cutoff between high and low beam is much more defined, so the margin between high and low is more pronounced. Color temp at 6.5k, is much whiter that standard halogen bulbs. Reflective road signs are much brighter. And the price is right. I will get a 2nd set for spares, (Just in case..) and recommend them to associates.