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Review on πŸ”† Marsauto 9006 LED Bulbs - 8000 Lumens, 6000K White Light, 300% Brighter - HB4 HB4U 9006XS LED Light Bulb with 12 CSP Chips - Cool Brightness - Pack of 2 by Randy Bin

Revainrating 5 out of 5

Redesigned with correct polarity now

Reading a lot of reviews of these bulbs, I noticed that a lot of people had to reverse the plug to get the correct polarity for the bulbs. Well, not anymore. Apparently Marsauto saw the reviews and fixed this small design flaw. I received these bulbs, installed them on my 2003 Silverado 1500HD with the latch in the correct position to hook onto the bulb wire and it worked perfectly the first time. I bought these to replace the old Hids which were (and always) quite slow to warm up to full brightness when first turned on. Also, they emit a nice white light, unlike the old bluish tinted lenses (I think they should be 6500k) which by the way don't really improve light performance in any way. I really appreciate the low profile, fanless heatsink as clearance behind the headlight housing is very important. So much so that beforehand I had to do some "operations" on the plastic behind the bulbs to mount the shades. Also, they don't generate much heat like Hidden, so they're much safer to use in modern (expensive) plastic headlight housings. Now that I'm happy with it, I've ordered a pair of 9005s for high beam. Just a quick note for those who find these bulbs a bit tight to install due to the slightly large o-ring. Just apply a light coat of silicone grease (electrical or plumbing grease) to the o-ring and they're easy to install.

Pros
  • Easy to install
Cons
  • The list will be long.