Diode Dynamics Replacement D5A HID Bulbs (Pair)
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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 replacement D5A HID bulbs are a direct swap for the factory HID headlight bulbs on 2016-and-later GM half-ton and HD trucks. They line up correctly in the housing, install easily, and add total light output with consistent color from bulb to bulb. Sold as a pair.
Why it works
- More light: 3,300 measured lumens per bulb at 35 W.
- Correct alignment: made to sit right in the factory housing for easy installation.
- Matched color: true colors with no variance between bulbs.
- Plug and play: OEM-size connector.
Options
- 4300K (DD1219P): natural white like factory HID, no blue tint, can look slightly warm.
- 5000K (DD1220P): pure white with no warm hint and no blue tint.
- 6000K (DD1221P): Diode's most popular, an ice white that matches best with most LEDs.
Fitment
- Chevrolet Silverado 1500 2016-2025
- GMC Sierra 1500 2016-2021
- GMC Sierra 2500/3500 2016-2023
These replace factory HID bulbs; they are for trucks that came with D5A HID headlights.
Specs at a glance
- Bulb size: D5A
- Power: 35 W
- Current: 3.5 A at 13.2V
- Operating voltage: 9-16V
Warranty
Diode Dynamics backs this with a 3-year replacement limited warranty. Terms are on our Diode Dynamics warranty page; the rest of the lineup lives in our Diode Dynamics collection.
Questions before you order?
Fitment questions are easier to settle before the box ships. Call or text us at (920) 249-7744.
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Specifications
Diode Dynamics Replacement D5A HID Bulbs (Pair) FAQs
Which color should I pick?
4300K matches the natural white of factory HID and can look slightly warm. 5000K is pure white. 6000K is an ice white and the best match if you run other LED lighting.
Will these fit my truck?
They are listed for 2016-2025 Chevrolet Silverado 1500, 2016-2021 GMC Sierra 1500 and 2016-2023 GMC Sierra 2500/3500 with factory D5A HID headlights.
Is it one bulb or two?
A pair, one for each headlight.
Is installation plug and play?
Yes. They use the OEM-size connector and are made for correct alignment. Questions on your exact truck? Call or text the real humans at NVMOS, (920) 249-7744.
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