watched the video on youtube and it was very informative.the difference after installation was obvious and installation was easy.

These were purchased for my new sub compact tractor. The bulbs that came installed in the housings were 35(!) watt H11. The housings had a good reflector design with a relatively good beam pattern, but the original bulbs threw about as much light as a candle, and about the same color! The light output now is nothing short of amazing, and they draw less power than the originals. There is also a rubber dust cover that keeps dirt out of the housing, and I wanted to keep that intact, due to the environment a tractor is typically exposed to. These fit perfectly, without any modification to that dust cover. My factory wiring only activates the low beam, but I plan on experimenting with switching to high beam, since oncoming traffic isn't an issue in my yard!

Very much "Plug & Play"!
LED slightly longer than existing halogens, probably due to the built-in drivers.
Although there is a rotating collar, the default positions were already in the correct horizontal orientation.
Brighter & whiter than OEM (but not excessively) with a projector-like beam pattern.
No external driver module to clutter the engine compartment to deal with.

I installed these in a 1981 Fiat Spider. I had replaced the old sealed beam headlights with a newer H4 housing and halogen bulb combination but was still not happy with the result. But the LED bulb makes all the difference in the world! Great light pattern in low and high beams, sharp cut off line on the low beam so I donÄôt blind anyone. The bulbs are compact and fit nicely in the tight light well of my old car with no modification required. Truly plug and play.

These were installed on my 6th gen VFR800 and they fit with no modifications to the bike.

Brighter than stock, improved beam reach, light is well defined, nice white light color.

These went in to replace a halogen H4 bulb on a 2014 Triumph Street Triple R. Decided to convert to LEDs to freshen up the bike. These are the only LED bulbs which would fit inside the stock housing with the limited enclosure space. No external LED driver would fit inside, and I did not want one dangling outside the housing. This is the only built-in driver pack LED with a filament layout pattern which fit my requirements. Have not yet noticed any temperature-related shutdowns or power deratings due to being in an enclosure.
Compared to the Philips H4 XtremeVision bulbs they replaced, the emitter location is on-axis, but positioned slightly away from the base, but in practice my cutoff pattern in the reflector housing has not noticeably changed.
Perceived brightness was just a little better than the 2-month old Philips XtremeVision, but is difficult to gauge given the color temperature difference from halogen.
The color temperature matches the Philips 194 Vision city-light LEDs, for reference. Would like to see these offered in a 4100/4300K temperature.

Installed these on 2019 Freightliner 122SD Much less glare from the reflector than what I was getting from the Halogen lights. Major reason for purchasing these was they are a perfect fit light bulb not requiring any modification which is important for commercial use in case I need to replace with the old stock bulbs

They look good, as they are all in ones however, the ones that came to me had different LED chips on them, made a pretty poor beam pattern, and couldnÄôt be rotated to ensure it wasnÄôt that. I took the 2 grub screws conpletely out but no budge.

Paid $45 for UPS 2 day delivery, came via USPS and Royal Mail, and took a week and a half. WouldnÄôt recommend buying.

Put in my 2005 Jeep TJ with H4 housing. Definitely twice as bright as halogen h4 bulbs. Look it up how's I can say is absolutely awesome!!!!!!