--- title: "921 led bulb — Niche Verdict: Skip it (50/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/automotive/921-led-bulb" last_updated: "2026-07-10T02:23:23.836Z" locale: en meta: description: "a small market ($496K/yr) — 921 led bulb doesn't clear our bar today." "og:description": "a small market ($496K/yr) — 921 led bulb doesn't clear our bar today." "og:title": "921 led bulb — Niche Verdict: Skip it (50/100) | Amazon United States - Flapen" --- Back to Flapen home # **921 led bulb** **Skip it****50/100 ** a small market ($496K/yr) — 921 led bulb doesn't clear our bar today. **Market/yr** **$496K** **Growth (1y)** **+157.3%** **Products** **22** **Brands** **14** was 17 a year ago **Sellers** **39** **Price range** **$5.48–$27.71** **Returns** **3.1%** **Rating** **4.5★** **Skip it** Scored 50/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **25** ×0.30 Growth **72** ×0.30 Competition **51** ×0.20 Quality gap **37** ×0.10 Returns **75** ×0.10 ## **Demand** Weekly Amazon search volume, last 104 weeks — +157.3% year over year. 15K7KSpike '24Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26 ## **Seasonality** Monthly demand index across the year — 1.00 is average. JFMAMJJASOND Peak months: Oct · busiest ÷ quietest = 1.6× ## **Competition** - AUXITO34% - LASFIT21% - SEALIGHT13% - AOICANKI6% - SYLVANIA5% - Alla Lighting3% - Other (8 brands)17% The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them. 14 brands and 39 sellers compete here. **Brands** **14 **▼falling was 17 a year ago **Sellers** **39** **Top 5 brand share** **80%** #ProductBrandPriceRatingReviewsClick shareTrend 1 ![AUXITO 912 921 LED Bulb for Backup Light Reverse Lights High Power 2835 15-SMD Chipsets Error Free T15 906 922 W16W Bulbs 6000K White Exterior Light Bulbs (Upgraded Pack of 2)](https://m.media-amazon.com/images/I/51QBttNULaL.jpg) [**AUXITO 912 921 LED Bulb for Backup Light Reverse Lights High Power 2835 15-SMD Chipsets Error Free T15 906 922 W16W Bulbs 6000K White Exterior Light Bulbs (Upgraded Pack of 2)**](https://www.amazon.com/dp/B0728DYR9H) AUXITO$12.734.5★35,93320%▼falling 2 ![LASFIT 921 LED Bulb Reverse Light 912 T15 6000K White Canbus Error Free W16W 906 904 Backup Light Replacement Cargo Lights for Car Trunk Super Bright Pack of 2](https://m.media-amazon.com/images/I/51wXpua-kcL.jpg) [**LASFIT 921 LED Bulb Reverse Light 912 T15 6000K White Canbus Error Free W16W 906 904 Backup Light Replacement Cargo Lights for Car Trunk Super Bright Pack of 2**](https://www.amazon.com/dp/B081YL2Q2W) LASFIT$13.674.5★17,97313%▲rising 3 ![LASFIT 921 LED Bulb Reverse Lights 912 T15 Back Up Light CANBUS Error Free W16W 906 Reversing Bulb 904 916 6000K Xenon White New Upgrade Design Plug and Play (Pack of 2)](https://m.media-amazon.com/images/I/41GAGNQ5LbL.jpg) [**LASFIT 921 LED Bulb Reverse Lights 912 T15 Back Up Light CANBUS Error Free W16W 906 Reversing Bulb 904 916 6000K Xenon White New Upgrade Design Plug and Play (Pack of 2)**](https://www.amazon.com/dp/B081YJ7G81) LASFIT$23.954.5★7,2709%▲rising 4 ![AUXITO 912 921 LED Bulbs for Backup Reverse Light Bulbs 42-SMD 6000K Ultra Bright White Non-polarity 906 W16W T15 921 LED Bulb Direct Back Up Light Replacement Lamp Pack of 2](https://m.media-amazon.com/images/I/51ehcv+-BRL.jpg) [**AUXITO 912 921 LED Bulbs for Backup Reverse Light Bulbs 42-SMD 6000K Ultra Bright White Non-polarity 906 W16W T15 921 LED Bulb Direct Back Up Light Replacement Lamp Pack of 2**](https://www.amazon.com/dp/B08KFS93PS) AUXITO$15.754.5★20,3309%▼falling 5 ![SEALIGHT 921 LED Bulb Reverse Light 600% Brighter T15 906 904 916 W16W 921 LED Bulb with Projector Replacement Tail Backup Reverse Lights Non-polarity Xenon White Interior Lighting Pack of 2](https://m.media-amazon.com/images/I/417oahcnv3L.jpg) [**SEALIGHT 921 LED Bulb Reverse Light 600% Brighter T15 906 904 916 W16W 921 LED Bulb with Projector Replacement Tail Backup Reverse Lights Non-polarity Xenon White Interior Lighting Pack of 2**](https://www.amazon.com/dp/B0D3LGQ1SW) SEALIGHT$18.394.6★3166%▲rising 6 ![AOICANKI 20pcs Super Bright RV Trailer T10 921 194 42-SMD 12V Car Backup Reverse LED Lights Bulbs Light Width Lamp Xenon White](https://m.media-amazon.com/images/I/51TO1lPHqNL.jpg) [**AOICANKI 20pcs Super Bright RV Trailer T10 921 194 42-SMD 12V Car Backup Reverse LED Lights Bulbs Light Width Lamp Xenon White**](https://www.amazon.com/dp/B076V9XXW6) AOICANKI$11.474.5★10,3636%▲rising 7 ![AUXITO 921 LED Bulb Reverse Light 400% Bright 912 T15 6000K White Canbus Error Free W16W 906 904 Backup Replacement Parking Light Assemblies For Car/Trunk Pack of 2](https://m.media-amazon.com/images/I/415nkw4-UmL.jpg) [**AUXITO 921 LED Bulb Reverse Light 400% Bright 912 T15 6000K White Canbus Error Free W16W 906 904 Backup Replacement Parking Light Assemblies For Car/Trunk Pack of 2**](https://www.amazon.com/dp/B0FZTLBX4N) AUXITO$11.684.6★11,0135%▲rising 8 ![SEALIGHT 921 LED Bulb Reverse Light 500% Super Bright T15 Reverse Light Bulb 3030-SMD Chipsets Canbus Error Free 906 W16W 922 912 921 LED Bulb for Backup Lights 6000K White Pack of 2](https://m.media-amazon.com/images/I/51enNV5D1YL.jpg) [**SEALIGHT 921 LED Bulb Reverse Light 500% Super Bright T15 Reverse Light Bulb 3030-SMD Chipsets Canbus Error Free 906 W16W 922 912 921 LED Bulb for Backup Lights 6000K White Pack of 2**](https://www.amazon.com/dp/B0F8VDD1HP) SEALIGHT$12.884.5★15,2144%▼falling 9 ![SEALIGHT 2026 Latest 921 LED Bulb 700% Super Bright 912 T15 Led Reverse Light Canbus Error Free 906 904 916 W16W LED Bulbs 6500K White Non-polarity Automotive Back Up Light Assemblies 2PCS](https://m.media-amazon.com/images/I/41Bw5XklyJL.jpg) [**SEALIGHT 2026 Latest 921 LED Bulb 700% Super Bright 912 T15 Led Reverse Light Canbus Error Free 906 904 916 W16W LED Bulbs 6500K White Non-polarity Automotive Back Up Light Assemblies 2PCS**](https://www.amazon.com/dp/B0GGB1HKCP) SEALIGHT$14.144.5★6,8813%▲rising 10 ![Alla Lighting 912 921 LED Bulbs for Back-up Reverse Lights 6000K Xenon White CAN-BUS 4014 30-SMD T10 T15 906 W16W 921K 922 360 Light Backup Cargo Lights Replacement Extremely Super Bright](https://m.media-amazon.com/images/I/519SgkC2hJL.jpg) [**Alla Lighting 912 921 LED Bulbs for Back-up Reverse Lights 6000K Xenon White CAN-BUS 4014 30-SMD T10 T15 906 W16W 921K 922 360 Light Backup Cargo Lights Replacement Extremely Super Bright**](https://www.amazon.com/dp/B072FHNZKW) Alla Lighting$12.654.6★15,4733%▼falling 11 ![MIFMIA 912 921 LED Bulb Reverse Lights High Power 27-SMD Chipsets Error Free T15 906 922 W16W Bulbs 6500K White (Upgraded Pack of 2)](https://m.media-amazon.com/images/I/51nY1NUzkgL.jpg) [**MIFMIA 912 921 LED Bulb Reverse Lights High Power 27-SMD Chipsets Error Free T15 906 922 W16W Bulbs 6500K White (Upgraded Pack of 2)**](https://www.amazon.com/dp/B0CR3HR1CB) MIFMIA$6.374.6★1,1933%▼falling 12 ![BANGO 912 921 LED Bulb for Backup Reverse Light 6000K White Non-polarity CANBUS Error Free Super Bright T15 906 922 W16W LED Replacement Bulbs for Back Up Daytime Running Lights Pack of 2](https://m.media-amazon.com/images/I/51nA8+kOO+L.jpg) [**BANGO 912 921 LED Bulb for Backup Reverse Light 6000K White Non-polarity CANBUS Error Free Super Bright T15 906 922 W16W LED Replacement Bulbs for Back Up Daytime Running Lights Pack of 2**](https://www.amazon.com/dp/B0FKS37K4F) BANGO$9.814.6★4493%▼falling 13 ![KIMLATAR 921 LED Bulbs Reverse Light Upgrade 600% Super Bright White 912 T15 Back up lights W16W 912 LED Bulb Direct Reverse Replacement LampsPack of 2](https://m.media-amazon.com/images/I/51yTOs8+mqL.jpg) [**KIMLATAR 921 LED Bulbs Reverse Light Upgrade 600% Super Bright White 912 T15 Back up lights W16W 912 LED Bulb Direct Reverse Replacement LampsPack of 2**](https://www.amazon.com/dp/B09FYV465P) KIMLATAR$7.104.4★2592%▲rising 14 ![SYLVANIA - 921 SilverStar Mini Bulb - Brighter and Whiter Light Ideal for Center High Mount Stop Light (CHMSL) and More (Contains 2 Bulbs)](https://m.media-amazon.com/images/I/413gxOai97L.jpg) [**SYLVANIA - 921 SilverStar Mini Bulb - Brighter and Whiter Light Ideal for Center High Mount Stop Light (CHMSL) and More (Contains 2 Bulbs)**](https://www.amazon.com/dp/B0049A1N3U) SYLVANIA$11.674.6★9142%▲rising 15 ![Antline T10 921 194 168 175 LED Bulbs White 20-Packs Super Bright 3014 42-SMD LED Replacement 12 Volt RV Camper Trailer Boat Trunk Interior Dome Map License Lights Backup Reverse Lights](https://m.media-amazon.com/images/I/51atR+j+zfL.jpg) [**Antline T10 921 194 168 175 LED Bulbs White 20-Packs Super Bright 3014 42-SMD LED Replacement 12 Volt RV Camper Trailer Boat Trunk Interior Dome Map License Lights Backup Reverse Lights**](https://www.amazon.com/dp/B07S62PKWG) Antline$11.804.4★5,4952%—flat **~~Showing 15 of 22 — show all ~~** ## **Product shelf** All 22 tracked products in this niche. Top sellersNewestTrending [![AUXITO 912 921 LED Bulb for Backup Light Reverse Lights High Power 2835 15-SMD Chipsets Error Free T15 906 922 W16W Bulbs 6000K White Exterior Light Bulbs (Upgraded Pack of 2)](https://m.media-amazon.com/images/I/51QBttNULaL.jpg)**AUXITO 912 921 LED Bulb for Backup Light Reverse Lights High Power 2835 15-SMD Chipsets Error Free T15 906 922 W16W Bulbs 6000K White Exterior Light Bulbs (Upgraded Pack of 2)** AUXITO**$12.73**4.5★35,933 reviews](https://www.amazon.com/dp/B0728DYR9H) [![LASFIT 921 LED Bulb Reverse Light 912 T15 6000K White Canbus Error Free W16W 906 904 Backup Light Replacement Cargo Lights for Car Trunk Super Bright Pack of 2](https://m.media-amazon.com/images/I/51wXpua-kcL.jpg)**LASFIT 921 LED Bulb Reverse Light 912 T15 6000K White Canbus Error Free W16W 906 904 Backup Light Replacement Cargo Lights for Car Trunk Super Bright Pack of 2** LASFIT**$13.67**4.5★17,973 reviews](https://www.amazon.com/dp/B081YL2Q2W) [![LASFIT 921 LED Bulb Reverse Lights 912 T15 Back Up Light CANBUS Error Free W16W 906 Reversing Bulb 904 916 6000K Xenon White New Upgrade Design Plug and Play (Pack of 2)](https://m.media-amazon.com/images/I/41GAGNQ5LbL.jpg)**LASFIT 921 LED Bulb Reverse Lights 912 T15 Back Up Light CANBUS Error Free W16W 906 Reversing Bulb 904 916 6000K Xenon White New Upgrade Design Plug and Play (Pack of 2)** LASFIT**$23.95**4.5★7,270 reviews](https://www.amazon.com/dp/B081YJ7G81) [![AUXITO 912 921 LED Bulbs for Backup Reverse Light Bulbs 42-SMD 6000K Ultra Bright White Non-polarity 906 W16W T15 921 LED Bulb Direct Back Up Light Replacement Lamp Pack of 2](https://m.media-amazon.com/images/I/51ehcv+-BRL.jpg)**AUXITO 912 921 LED Bulbs for Backup Reverse Light Bulbs 42-SMD 6000K Ultra Bright White Non-polarity 906 W16W T15 921 LED Bulb Direct Back Up Light Replacement Lamp Pack of 2** AUXITO**$15.75**4.5★20,330 reviews](https://www.amazon.com/dp/B08KFS93PS) [![SEALIGHT 921 LED Bulb Reverse Light 600% Brighter T15 906 904 916 W16W 921 LED Bulb with Projector Replacement Tail Backup Reverse Lights Non-polarity Xenon White Interior Lighting Pack of 2](https://m.media-amazon.com/images/I/417oahcnv3L.jpg)**SEALIGHT 921 LED Bulb Reverse Light 600% Brighter T15 906 904 916 W16W 921 LED Bulb with Projector Replacement Tail Backup Reverse Lights Non-polarity Xenon White Interior Lighting Pack of 2** SEALIGHT**$18.39**4.6★316 reviews](https://www.amazon.com/dp/B0D3LGQ1SW) [![AOICANKI 20pcs Super Bright RV Trailer T10 921 194 42-SMD 12V Car Backup Reverse LED Lights Bulbs Light Width Lamp Xenon White](https://m.media-amazon.com/images/I/51TO1lPHqNL.jpg)**AOICANKI 20pcs Super Bright RV Trailer T10 921 194 42-SMD 12V Car Backup Reverse LED Lights Bulbs Light Width Lamp Xenon White** AOICANKI**$11.47**4.5★10,363 reviews](https://www.amazon.com/dp/B076V9XXW6) [![AUXITO 921 LED Bulb Reverse Light 400% Bright 912 T15 6000K White Canbus Error Free W16W 906 904 Backup Replacement Parking Light Assemblies For Car/Trunk Pack of 2](https://m.media-amazon.com/images/I/415nkw4-UmL.jpg)**AUXITO 921 LED Bulb Reverse Light 400% Bright 912 T15 6000K White Canbus Error Free W16W 906 904 Backup Replacement Parking Light Assemblies For Car/Trunk Pack of 2** AUXITO**$11.68**4.6★11,013 reviews](https://www.amazon.com/dp/B0FZTLBX4N) [![SEALIGHT 921 LED Bulb Reverse Light 500% Super Bright T15 Reverse Light Bulb 3030-SMD Chipsets Canbus Error Free 906 W16W 922 912 921 LED Bulb for Backup Lights 6000K White Pack of 2](https://m.media-amazon.com/images/I/51enNV5D1YL.jpg)**SEALIGHT 921 LED Bulb Reverse Light 500% Super Bright T15 Reverse Light Bulb 3030-SMD Chipsets Canbus Error Free 906 W16W 922 912 921 LED Bulb for Backup Lights 6000K White Pack of 2** SEALIGHT**$12.88**4.5★15,214 reviews](https://www.amazon.com/dp/B0F8VDD1HP) ## **Reviews** What buyers praise and complain about, mined from review topics. ### **What buyers love ** **Brightness/Shine/Glow**54% *“Bright light”* **Quality-Overall**9% *“Excellent product”* **Size-Overall**8% *“Amazing fit”* **Assembly/Installation**6% *“Installed without problem”* **Value For Money**4% *“Good value for money”* **Advertised Vs Actual Product**3% *“Exactly as Advertised”* **Efficiency**2% *“energy efficient”* **Durability**2% *“seems quite durable”* **Night Vision**1% *“A Major Night-Vision Upgrade”* **Color**1% *“Nice color”* ### **What buyers complain about ** **Durability**24% *“Didnt last”* **Compatibility-Overall**12% *“Not CANBUS compatible”* **Brightness/Shine/Glow**9% *“not as bright as i though”* **Quality-Overall**8% *“Inconsistent quality”* **Size-Overall**6% *“The size is considerably larger”* **Functionality-Overall**6% *“did get a non working one in the set”* **Advertised Vs Actual Product**3% *“not as claimed”* **Value For Money**3% *“It's cheaper in the long run”* **Socket/Port/Plug**2% *“A little tough to push into socket”* **Assembly/Installation**2% *“Took too long to install these”* #### **Top return reasons**- Size-Overall56% - Compatibility-Overall16% - Functionality-Overall6% - Brightness/Shine/Glow5% - Advertised Vs Actual Product5% - Defective Material/Parts3% - Socket/Port/Plug2% - Assembly/Installation2% - Color2% - Value For Money1%