Poflex Technology Co., Ltd

LED headlight bulbs reflect same as halogen?

If the pattern is nearly the same from the reflector, that LED headlight bulbs should work the same as halogen

The answer to this very reasonable question would be yes, but the devil is in the details: this question assumes something that isn't the case. It assumes the light pattern is nearly the same, and in fact it's not even close. Oh, it looks very similar in the video, sure, but that doesn't mean anything except that you should distrust whoever is trying to sell you something or convince you of something by using a video or pictures as "proof", because they are lying to you.

The video you saw was made with an ordinary video camera of one kind or another. Pictures and videos like this can't approach the level of dynamic range necessary to evaluate headlight beams accurately, usefully, or meaningfully. There is very specialized (and expensive) camera-based equipment available that can assess headlight beams, but the output isn't a picture or video like the one you saw, it's an isoplot as described here. The dynamic range of an imaging system is the size of the range between the greatest and least intensity (or brightness) that can simultaneously be accurately represented. The human eye's dynamic range, without adaptation, is around 100,000:1. The figure with adaptation (which matters because night driving is done in a partially adapted state called "mesopic vision") is 1,000,000,000:1. Even the smaller of these figures is much, much greater than the maximum practical dynamic range of a still or video camera, whether we're looking at a printed photograph, a movie on film, a digital photo, or a digital video. So it's very, very easy to create pictures and videos that appear to show headlight beam patterns that look just fine, but it's just an appearance, not reality. 

That's a major, basic problem. But ignore it, and there's still a big problem: the amount of additional light required to make a meaningful difference in the driver's ability to see is much greater than the amount of additional light that moves glare levels from acceptable to dangerous. So even if we had a super high-end video imaging system with ultra high dynamic range, what looks like just a minor, trivial increase in glare-zone light is actually not.

The basic idea of an LED retrofit bulb for halogen headlamps isn't a nonstarter in the way "HID kits" are, but there are significant technical challenges that stand in the way of such retrofits being manufacturable and available (which hasn't stopped the factories from cranking out "LED retrofits" and disreputable vendors from hawking them). POFLEX Auto Accessory Co.,Ltd task force working on those challenges, and manufacture it.