---
product_id: 500588267
title: "Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White"
brand: "auxbeam"
price: "€ 45.52"
currency: EUR
in_stock: true
reviews_count: 13
category: "Auxbeam"
url: https://www.desertcart.sk/products/500588267-auxbeam-921-led-bulb-reverse-light-921-bulb-4000lm-6500k
store_origin: SK
region: Slovakia
---

# 5.5W energy-efficient power draw 360° dual projector wide illumination 4000 lumens ultra-bright output Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White

**Brand:** auxbeam
**Price:** € 45.52
**Availability:** ✅ In Stock

## Summary

> 🚗 Brighten your backup game with Auxbeam’s 4000LM powerhouse!

## Quick Answers

- **What is this?** Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White by auxbeam
- **How much does it cost?** € 45.52 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/500588267-auxbeam-921-led-bulb-reverse-light-921-bulb-4000lm-6500k)

## Best For

- auxbeam enthusiasts

## Why This Product

- Trusted auxbeam brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Aviation-grade aluminum and intelligent IC driver ensure stable brightness and up to 50,000 hours of reliable performance.
- • **See Every Angle:** Dual HD glass projectors deliver an 80% wider viewing angle with full 360° light coverage—no more blind spots.
- • **CANBUS Compatible:** Error-free integration with most vehicle systems prevents annoying dashboard warnings and fits a wide range of car models.
- • **Plug & Play Simplicity:** Fits original sockets with zero wiring hassle—get upgraded visibility in under 5 minutes.
- • **Illuminate with Confidence:** Up to 4X brighter than halogen for safer, crystal-clear reversing at night.

## Overview

The Auxbeam 921 LED Reverse Light bulb delivers an ultra-bright 4000 lumens of crisp 6500K white light using advanced dual projector technology for 360° illumination. Designed for quick plug-and-play installation, it fits multiple socket types and features CANBUS compatibility to avoid dashboard errors. Built with aviation-grade aluminum and an intelligent IC driver, it offers up to 50,000 hours of long-lasting, energy-efficient performance, making it a top-tier upgrade for safer nighttime reversing.

## Description

Buy Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White | CANbus Error Free, Dual Projector Design, Fits 912 921 906 904 922 W16W T15, 50,000 Hrs Lifespan, Plug & Play: Turn Signal Bulbs - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Huge Upgrade Over Stock – 2008 Hyundai Santa Fe - Installed these Auxbeam LED reverse bulbs in a 2008 Hyundai Santa Fe, and the difference over the factory bulbs is night and day. They are extremely bright, clean white, and actually put enough light on the ground behind the vehicle to make backing up at night much easier. Installation was completely plug and play and both bulbs worked perfectly. The projector design does a good job throwing the light outward instead of just making the taillight housing look brighter. The before and after pictures really show the difference. They’re definitely bright, but for reverse lights that’s exactly what I wanted. Very impressed with them so far and would absolutely buy them again.
Review: Fit 2011 F150. Seems Descent. - Long write up, hopefully this helps you if you're considering these. Only been installed for a couple weeks so can't comment on longevity. I checked for EMI by tuning to a weak radio station and putting the tuck in reverse to turn on the lights. There was no interference. (Side note...I have the Putco light bar bumper grill insert which creates EMI. Unhappy it has EMI for what it cost. I have 3" Vision X CG2 Light Cannon's and they are clean, no EMI) This Auxbeam bulbs's light output is definitely better than stock. Reasonable for the ~$22 cost. I didn't measure the light but I doubt they are 4000 lumens. Incandescent 921 bulbs are around 260, the effective light behind the truck is not 7 times brighter in my opinion (assuming 2000 each, 4000 for the pair). I have tinted windows so I need more than these bulbs can supply. (I wasn't expecting 4000 lumems - I assumed it was marketing baloney) I didn't want a higher power bulb since I was concerned about heat. Bulbs that replace the entire socket so they can have heat sinks external to the housing may be OK, but I was concerned the light pattern could be sub-optimal since your limited by the stock housing. Instead, I am going to add the Morimoto backup light boost bar. That seems a better option for ~$80.

## Features

- UP TO 4X BRIGHTER FOR SAFER REVERSING: Auxbeam 921 LED bulb reverse light features 7 high-intensity 3030 SMD chips and 18 stable 4014 SMD chips, delivering up to 4000LM of crisp 6500K white light. Instant 0.1-second illumination provides clearer rear visibility when backing up at night, while the efficient 5.5W design uses less power than standard halogen bulbs.
- DUAL PROJECTOR FOR WIDER 360° ILLUMINATION: Unlike a standard 921 bulb, the advanced dual HD glass projector design helps focus and distribute light more evenly for up to an 80% wider viewing angle. Full-range 360° illumination reduces dark spots and improves visibility around the rear of your vehicle for clearer, more confident reversing.
- 5-MINUTE PLUG & PLAY INSTALLATION: Built with a compact 1:1 halogen-size design and non-polarity setup, these 921 LED reverse light bulbs install directly into the original socket with no complicated wiring. Compatible with T15, 912, 921, 922, 906, 904, 902, W16W, 916 and other compatible sockets. Please verify your original bulb size before purchase.
- 50,000-HOUR LONG-LASTING PERFORMANCE: Aviation-grade aluminum construction quickly dissipates heat to help maintain stable brightness and extend bulb life. The built-in Elecsy-X intelligent IC driver regulates voltage and temperature while helping reduce electrical interference, providing reliable performance for up to 50,000 hours.
- CANBUS READY FOR MOST VEHICLES: Built-in intelligent decoding technology helps the 921 LED bulb work with most CANBUS systems and reduces common dashboard error messages or warning lights. Designed for a wide range of American, European, Japanese and Korean vehicles, making it an ideal 921 reverse light bulb upgrade for everyday driving.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BLNM954J |
| Auto Part Position | Rear |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #4,301 in Automotive ( See Top 100 in Automotive ) #17 in Automotive Back Up Light Bulbs |
| Brand | Auxbeam |
| Brand Name | Auxbeam |
| Brightness | 4000 lm |
| Color | White |
| Color Temperature | 6500 Kelvin |
| Customer Reviews | 4.6 out of 5 stars 816 Reviews |
| Fit Type | Universal Fit |
| Item Highlight | CANbus Error Free, Dual Projector Design, Fits 912 921 906 904 922 W16W T15, 50,000 Hrs Lifespan, Plug & Play |
| Light Output Maximum | 4000 lumens |
| Light Source Type | LED |
| Manufacturer | Auxbeam |
| Manufacturer Part Number | XD000515 |
| Manufacturer Warranty Description | 1 year warranty |
| Model Number | XD000515 |
| Number of Items | 2 |
| Operating Life | 50000 hours |
| Package Quantity | 1 |
| Specific Uses For Product | Backup Reverse Light |
| Unit Count | 2 Count |
| Wattage | 5.5 watts |

## Product Details

- **Brand:** Auxbeam
- **Brightness:** 4000 lm
- **Color Temperature:** 6500 Kelvin
- **Light Source Type:** LED
- **Specific Uses For Product:** Backup Reverse Light

## Images

![Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White - Image 1](https://m.media-amazon.com/images/I/71Xj6kbzDsL.jpg)
![Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White - Image 2](https://m.media-amazon.com/images/I/71sP2q6LprL.jpg)
![Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White - Image 3](https://m.media-amazon.com/images/I/615w8if2bDL.jpg)
![Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White - Image 4](https://m.media-amazon.com/images/I/71JAYXHdTwL.jpg)
![Auxbeam 921 LED Bulb Reverse Light, 921 Bulb, 4000LM, 6500K White - Image 5](https://m.media-amazon.com/images/I/71rUhoqgBZL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: The bulbs hyper flash or have an error warning on dashboard, how do I fix it?**
A: Load resistors may be required to solve the issue, you can search "50w 6ohm load resistors" on Amazon, or reach us for them.

**Q: Amazon says it fit, but actually no, how do I do?**
A: You can leave a question in 'Customer questions & answers' on the product page, or reach us through Amazon, we will check if we have the correct one for you.

**Q: I don't know if the bulbs fit my car?**
A: You can use the "amazonconfirmfit" on the product page to check if the part number is right. Enter your car model and year then it will shows if the bulbs will fit your car and the applicable locations.

**Q: One of my bulbs is defective, can I get a replacement?**
A: Yes, you can send a mail to us through Amazon to get replacement. If you don't know how to reach us, you can leave a question in 'Customer questions & answers' on the product page, we will answer you there.

**Q: The item delivered didn't work properly or not fit for my project, what can I do?**
A: Please reach us for more details then we can confirm the problem for you. If you don't know how to reach us, you can leave a question in 'Customer questions & answers' on the product page, we will answer you there.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Huge Upgrade Over Stock – 2008 Hyundai Santa Fe
*by J***N on August 30, 2026*

Installed these Auxbeam LED reverse bulbs in a 2008 Hyundai Santa Fe, and the difference over the factory bulbs is night and day. They are extremely bright, clean white, and actually put enough light on the ground behind the vehicle to make backing up at night much easier. Installation was completely plug and play and both bulbs worked perfectly. The projector design does a good job throwing the light outward instead of just making the taillight housing look brighter. The before and after pictures really show the difference. They’re definitely bright, but for reverse lights that’s exactly what I wanted. Very impressed with them so far and would absolutely buy them again.

### ⭐⭐⭐⭐⭐ Fit 2011 F150. Seems Descent.
*by C***H on February 26, 2025*

Long write up, hopefully this helps you if you're considering these. Only been installed for a couple weeks so can't comment on longevity. I checked for EMI by tuning to a weak radio station and putting the tuck in reverse to turn on the lights. There was no interference. (Side note...I have the Putco light bar bumper grill insert which creates EMI. Unhappy it has EMI for what it cost. I have 3" Vision X CG2 Light Cannon's and they are clean, no EMI) This Auxbeam bulbs's light output is definitely better than stock. Reasonable for the ~$22 cost. I didn't measure the light but I doubt they are 4000 lumens. Incandescent 921 bulbs are around 260, the effective light behind the truck is not 7 times brighter in my opinion (assuming 2000 each, 4000 for the pair). I have tinted windows so I need more than these bulbs can supply. (I wasn't expecting 4000 lumems - I assumed it was marketing baloney) I didn't want a higher power bulb since I was concerned about heat. Bulbs that replace the entire socket so they can have heat sinks external to the housing may be OK, but I was concerned the light pattern could be sub-optimal since your limited by the stock housing. Instead, I am going to add the Morimoto backup light boost bar. That seems a better option for ~$80.

### ⭐⭐⭐⭐⭐ Bright, clear upgrade
*by A***R on August 12, 2025*

This LED reverse bulb is a game-changer! Installation was quick and easy, and the difference in brightness is unbelievable — it lights up the entire area behind my vehicle, making reversing at night so much safer. The light is crisp and clear without any annoying glare, and it comes on instantly with no delay. It’s energy-efficient, runs cool, and feels solidly built, so I know it’ll last a long time. If you want maximum visibility and a clean modern look, this LED reverse bulb is a must-have upgrade!

## Frequently Bought Together

- Auxbeam 912 921 LED Bulb for Backup Reverse Light Bulbs, 4000 Lumens 400% Brighter Super Bright Canbus Error Free 906 904 922 W16W T15 LED Bulbs with Double Projectors, 6500K White, Pack of 2
- Auxbeam Upgraded 194 LED Bulbs White,400% Brighter Extremely Bright Canbus Error Free 168 2825 T10 W5W LED Light Bulbs for License Plate Lights Interior Lights Dome Map Light, 30-SMD, Pack of 2
- Auxbeam T25 3156 3157 LED Bulbs, 6500K White, Super Bright 4114 3057 4157 3457 4057 LED Backup Reverse Lights for Cars Trucks Motorcycles, 3030-SMD 12V, Pack of 2

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-10-17*