**UPDATE** Guess I should have waited until I could ride this at night as actual street lighting is a little different than the beam pattern. Wall. Unfortunately, after driving at night, my enthusiasm has greatly diminished, because there is a clear dark spot right in the middle of the bar area on the road. a deflector at the bottom to direct the light, as should be stated elsewhere in the review - there is no rear-facing light in the UPPER CENTRE, similar to a standard H4 halogen bulb using a filament with a reflector is used on the underside. Maybe they work fine on the lamp unit which isn't as accurate as the Cibie E-Code lens but it becomes a very egregious omission in the design of these lamps and unfortunately I'll take them out and go back to the standard halogen bulb. I've included a photo of a standard halogen bulb setup so you can compare and see how the filament is positioned but also has a full length reflector on the underside to direct the light all the way through the headlight reflector instead of just through two sides like these led blocks do. .**Original Review** Installed these in my Cibie E-Code headlights and was pleasantly surprised when the design placed the chips in the correct position to create the correct beam pattern in the lamp assembly grooves. I tried several other LEDs. "H4" blocks but in none of them the chips were placed correctly so they gave a lot of blurry highlights because with these lamps the optics are so precise for the radiation pattern that the lighting has to be in the exact right position , so that the radiation pattern is correct . These bulbs appear to be made with the chips in exactly the same position as the filament of a standard H4 halogen bulb, including a curved reflector to direct light up and back onto the reflector in the body, which then focuses the light up a ripple pattern to the beam pattern was as envisioned by the lamp designers. The only reason for not giving five stars overall is that the moisture seal does not fit the back of the lamp housing and I am concerned that moisture will get into the lamp and damage the reflector.
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