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Review on πŸ’‘ X-Small H4 LED Bulb, 6500K (9003) All-in-One Conversion Kit - Cool White, Halogen Replacement - Pack of 2 by Cougar Motor by Sean Young

Revainrating 4 out of 5

Of course they are bright.

I bought these for a 2016 Honda Civic with projector headlights. I was hoping it could be a brighter upgrade to an old pair of H11 Cougar engine bulbs with CREE LEDs and they outperform them in sheer brightness and the color temperature is a little less cold, perhaps closer to true neutral. The problem is the radiation pattern. The old set produces an almost perfect, smooth, wide and flat beam pattern where they are very bumpy and have some pretty bad hotspots and they kind of make my cutoff bumpy and deformed. Compared to older lightbulbs, they get untouchably hot in about 30 seconds, while older lightbulbs take several minutes to reach that temperature. This doesn't have to be a disadvantage though, as it may be because they conduct heat much faster. Their physical design is quite impressive and the build quality is top notch. The workmanship is accurate and I noticed that they use real copper under the LEDs and also under the controller board, which is really rare. I still give them 4 because they seem to be very well made and can work great in another car. Note: I will test these for use as fog lights but they might be too intense.

Pros
  • Price
Cons
  • Almost never