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HSUN H21W BAY9S 64136 LED Bulbs feature 16 High Power X B-D chipsets per bulb, delivering an ultra-bright 4800 lumens output with a 360° beam angle. Designed for universal 12V-24V compatibility and equipped with built-in Canbus error-free technology, these bulbs ensure easy plug-and-play installation in 95% of vehicles. With a crisp 6000K white light and a lifespan exceeding 50,000 hours, they provide reliable, stylish illumination for backup lights, indicators, and more.
| ASIN | B07TMDBMVZ |
| Auto Part Position | Center |
| Best Sellers Rank | #155,297 in Automotive ( See Top 100 in Automotive ) #91 in Automotive Back Up Light Bulbs |
| Brand | HSUN |
| Brand Name | HSUN |
| Color | White |
| Color Temperature | 6000 Kelvin |
| Customer Reviews | 4.0 out of 5 stars 90 Reviews |
| Fit Type | Universal Fit |
| Item Package Quantity | 1 |
| Light Source Type | LED |
| Manufacturer | HSUN |
| Manufacturer Part Number | HSUN-001-BAY9S-021412 |
| Number of Items | 2 |
| Operating Life | 50000 hours |
| Package Quantity | 1 |
| Part Interchange Info | replacement |
| UPC | 745610569270 745610569126 |
| Unit Count | 2 Count |
| Voltage | 24 volts |
| Wattage | 21 watts |
C**S
Bright (but not "4800LM"), work great
Bought these on a whim to compare them with the excellent DDM bulbs I've had in my Volvo backup lights for a little over 2 years now. Those have been an incredible improvement over the stock bulb, and I was hoping I might find something even brighter. Despite the ridiculous claim of 4800 lumens in the listing for these HSUN bulbs, they are still very bright and right on par with the DDM bulbs (listed as 800 lumens). However, these are a bit cheaper which is nice, and they seem to work just as good as the DDM. The bulb shell is pretty much identical between the two, only the LED chips are different, and since this bulb style is limited to 3.5w I suppose you can only get so many lumens/watt out of an LED. These are definitely worth purchasing and fit right into the original socket with no problems.
Z**L
Great led bulbs. Let's see how long they last.
These bulbs are being used as turn signals and do not have hyperflash or bulb error codes on my 2010 Audi so far. They're also brighter than the old halogen bulbs.
E**E
AMAZING
THE BEST I HAVE EVER USED SO FAR, I WILL BUY IT OVER AND OVER AGAIN.
N**A
My factory halogen rear fog lights are brighter!
Not even as bright as my factory halogen rear fog lights! Complete false advertising and a total rip-off. And what's with all this cool blue white lighting? I want PLAIN OLD BRIGHT WHITE. Not "cool blue" white. Blue white looks trashy
P**O
Excellent led lights
Excellent led lights for Bmw F10 528 reverse lights. Perfect fit, no fault.
W**Y
Fits 2016 BMW F33/F83 running lights
Fits 2016 BMW F33/F83 running lights. The car requires 4 of these bulbs. 2 of my OEM bulbs where darkened and needed replacing. I didn't notice that these LEDs where any brighter than the OEM bulbs
K**R
Still gives light out fault
Bright but still gives a light error fault
S**Í
Bright Reverse LED, Works With CANBUS
Lights were a perfect fit for my vehicle. Didn’t cause any CANBUS issues. Very bright white LEDs that make seeing at night much easier. 4/5 stars because the packaging is of cheap Chinese origin and the LEDs don’t seem “high quality” and will probably fail within a year. $20ish is high for these LEDs, but if you need bright white replacement LEDs that don’t conflict with CANBUS, these will get the job done.
Trustpilot
4 days ago
2 weeks ago