Diode Dynamics 921 HP36 Cool White Backup/Cargo LED Bulbs
Warranty Information
Vendor warranty summary
Diode Dynamics Warranty
At a glance: 3 years on every Diode Dynamics product, 8 years on Stage Series and Elite Series lamps, and lifetime coverage on Stage Series pods, rock lights, SL2 bulbs and off-road brackets (orders from April 15, 2025)
This is Diode Dynamics' policy, not an NVMOS policy. We've summarized Diode Dynamics' published warranty in plain English. The manufacturer's official terms always govern and can change without notice. Last reviewed on nvmos.com: October 15, 2026.
Coverage by product
| Product or component | Coverage |
|---|---|
| All Diode Dynamics products: defects in materials and workmanship | 3 years |
| Stage Series and Elite Series lamp assemblies and lamp mounting brackets (functional failure; wiring, harnesses and lens covers excluded after year 3) | 8 years |
| Stage Series LED pods, Stage Series rock lights, SL2 and SL2 Pro LED bulbs, off-road mounting brackets, ordered on or after April 15, 2025 (functional failure after year 3) | Lifetime |
| Commercial or industrial use (construction, mining, fleet, agriculture and similar) | Capped at 8 years |
| Form Lighting products (a Diode Dynamics brand) | 2 years (details) |
What's covered
- Defective products are replaced with the same item, or a comparable one if it's been discontinued
- Diode Dynamics may replace just the failed component
- Finish defects caused by manufacturing, during the first 3 years
- Moisture beyond normal condensation that points to a seal failure, at Diode Dynamics' discretion
- Free tech support for the life of the product, even after the warranty ends
What's not covered
- Normal condensation, and paint or coating wear from regular use
- Installation or labor costs
- Improper installation or use, abuse, or opening, rewiring or repairing a product
- Swapping lenses on Stage Series lights voids the 3-year coverage (the 8-year coverage stays)
- Purchases from unauthorized sellers; coverage is for the original buyer and isn't transferable
How to make a Diode Dynamics claim
- Keep your proof of purchase; every claim needs it (gift recipients can register within 90 days of the original purchase instead)
- Request an RMA through Diode Dynamics' returns portal and work through diagnosis with their support team
- Nothing goes back without an RMA number; include photos for moisture claims
- For US customers, Diode Dynamics covers shipping on 3-year claims, plus return shipping for inspection on 8-year and lifetime claims
Diode Dynamics contact: Phone: (314) 205-3033 · Contact form · Monday to Friday, 10 AM to 5 PM Central · St. Charles, Missouri
Bought it from NVMOS? Start with us.
Have your order number and a few photos of the issue ready, then call real humans at (920) 249-7744 or send us a message. We'll tell you whether the claim goes through us or straight to Diode Dynamics, and help it along either way.
Disclaimer: The information on this page describes Diode Dynamics' own warranty policy. It is not a warranty offered by NVMOS (No Visible Means of Support LLC). Manufacturers update their terms at any time; we review these pages periodically, but the manufacturer's current official policy is the one that applies to your claim. Source: Diode Dynamics warranty. Last updated on nvmos.com: October 15, 2026. See our return policy for NVMOS's own terms.
About the brand
Diode Dynamics builds LED lighting in St. Charles, Missouri: Stage Series SS3 and SS5 pods, CrossLink light bars, ditch and fog kits, bulbs and accents. It designs, engineers and assembles as much as it can in the USA instead of rebranding imports, which shows in the warranty. NVMOS carries the Diode Dynamics off-road, vehicle lamp, bulb and accent lines for Toyota, Jeep, Ford, GM, Ram and Nissan trucks and SUVs,...
Based in: St. Charles, Missouri · Founded: 2006 · Made in: Designed and assembled in the USA · Quality: ISO 9001:2015 certified · Lead time: In-stock items usually leave Diode Dynamics the same business day; ask us about any item
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Warranty terms are set by Diode Dynamics, not NVMOS, and can change. Bought from us? Call (920) 249-7744 and we'll handle the claim with the brand.
Diode Dynamics 921 HP36 LED bulbs are a direct, plug-and-play replacement for the factory 921 backup or cargo light bulb, giving you a clean white reverse or cargo light at 210 lumens per bulb. Diode Dynamics lists them for trucks and SUVs including the Chevrolet Colorado, Chevrolet Silverado, Dodge Ram, Dodge Ram SX 2.0, Ford F-150 and more.
Why it works
- Omnidirectional LEDs fill the housing instead of pointing one way.
- Metal base pulls heat away for better reliability.
- Nonpolar circuit with voltage-spike protection — it lights either way it goes in.
- More output than the incandescent bulb it replaces, with a clean LED appearance.
- Plug and play — no modification needed.
Options
Cool White (6000K), sold as a single or a pair.
Fitment
This bulb size shows up in different positions on different trucks, so confirm which light you are replacing. Diode Dynamics lists it for:
- Chevrolet Colorado 2004-2012, 2015-2026
- Chevrolet Silverado 2007-2026
- Dodge Ram (non-projector) 2007-2010
- Dodge Ram 2000-2010
- Dodge Ram SX 2.0 2003-2005
- Ford F-150 1997-2023
- Ford F-250 Super Duty 2018-2022
- Ford Maverick 2022-2026
- Ford Ranger 1998-2005, 2019-2023
- Ford SVT Raptor 2010-2014
- Ford Super Duty 1999-2017
- GMC Canyon 2004-2012, 2015-2026
- GMC Sierra 1500 1999-2026
- GMC Sierra 2500 2000-2026
- GMC Sierra 3500 2001-2026
- Jeep Gladiator 2020-2026
- Lexus GX460 2010-2023
- Lexus LX470 2004-2007
- Lexus LX570 2008-2011, 2013-2019
- Nissan Frontier 2005-2026
- Nissan Titan 2004-2015, 2017-2024
- Nissan Titan XD 2016
- Ram 1500/2500/3500 (w/ non-projector headlights) 2011-2024
- Ram 1500/2500/3500 2011-2027
- Toyota 4Runner 2001-2024
- Toyota FJ Cruiser 2007-2014
- Toyota Land Cruiser 2006-2011, 2013-2021
- Toyota Sequoia 2001-2022
- Toyota Tacoma 2004-2023
- Toyota Tundra 2000-2017
Specs at a glance
- Measured output: 210 lm
- Color temperature: 6000K
- Power: 2.31 W
- Current: 0.175 A at 13.2V
- Operating voltage: 9-16V
- Polarity: nonpolar
- Operating temperature: -40°F to 185°F
- Bulb size: 921
Warranty
Diode Dynamics backs the 921 HP36 LED bulbs with a 3-year replacement limited warranty. Full terms are on our Diode Dynamics warranty page, and the rest of the brand lives in our Diode Dynamics lineup.
Questions before you order?
Fitment questions are easier to settle before the box ships. Call or text Carl & Anton at (920) 249-7744 or use the chat — real humans in Sheboygan, Wisconsin, not a call center.
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Specifications
Diode Dynamics 921 HP36 Cool White Backup/Cargo LED Bulbs FAQs
Will these fit my truck?
Diode Dynamics lists them for vehicles including the Chevrolet Colorado, Chevrolet Silverado, Dodge Ram, Dodge Ram SX 2.0, Ford F-150, Ford F-250 Super Duty and more. The 921 size can be used in more than one position, so confirm which light you are replacing. Call or text the real humans at NVMOS, (920) 249-7744.
Do I need to modify anything?
No. They are a direct replacement for the 921 backup or cargo light bulb and plug straight into the factory socket.
Does it matter which way it goes in?
No. These are nonpolar, so they light in either orientation.
Single or pair?
Both are listed. Most housings that come in left and right sides want a pair; a single makes sense for a lone dome, cargo or trunk light.
Multi-column
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