Written by Rick Kovac, COO of Golden Lighting

The takeaway: "5-year warranty" on a headline can mean very different things depending on which part of the fixture it actually covers — and federal law already requires the real terms to be spelled out in one place, if you know to ask for it.

Key takeaways:

  • Under the federal Magnuson-Moss Warranty Act, a written warranty has to be labeled "Full" or "Limited," and "Limited" simply means it falls short of five specific legal conditions — it's not a separate, lesser category with its own rules.
  • Many residential lighting brands warranty the LED light source and its electronics for far longer than they warranty the fixture body and finish — a headline number often applies to only one part of the fixture.
  • A company can't legally void your warranty just because you used a different brand of dimmer — but it can lawfully exclude damage that a genuinely incompatible dimmer actually caused. That's a real legal distinction, not a technicality.
  • The clearest sign of a well-written warranty is a document that spells out what's covered, what's excluded, and how to file a claim — federal law already requires that document to exist on any warranty over $15.

What "Limited Warranty" Actually Means

The Magnuson-Moss Warranty Act, administered by the FTC, doesn't require any company to offer a written warranty at all — it only regulates the ones a company chooses to offer. Where a company does offer one on a product over $15, federal regulation requires the terms to be disclosed in a single, clearly worded document covering what's covered and excluded, what the company will pay or provide, when coverage starts and how long it runs, and the exact steps to file a claim.

A warranty only earns the "Full" label if it meets all five specific conditions: no time limit on implied warranties, coverage that transfers to any owner during the period, free service and repair, a replacement-or-refund choice if repeated repair attempts fail, and no consumer obligations beyond simply reporting the problem. Miss even one of those, and the warranty is legally "Limited" — which is the overwhelming majority of what's actually sold. "Limited" isn't a red flag on its own; it's simply the normal legal category almost every real-world product warranty falls into.

The Part Most Shoppers Miss: Light Source vs. Fixture Body

A genuinely common and useful pattern across residential lighting brands is warranting the LED light source and its electronics on a meaningfully longer term than the fixture body and finish. It's common to see the integrated LED and driver assembly covered for somewhere in the 3-to-5-year range, while the physical fixture — the housing, the finish, the hardware — carries a much shorter term, sometimes just a single year. That gap matters because a "5-year warranty" headline on the box or product page may only describe the light-emitting component, not the metal fixture it's built into.

Ask which part of the fixture a warranty's headline number actually applies to — the light source and the fixture body are frequently two different promises, not one.

What Voids Coverage — and What Legally Can't

Common, legitimate exclusions across residential lighting warranties include normal wear and finish fading, improper installation or failure to follow written instructions, unauthorized modification, and voltage outside the fixture's stated range. Coastal or high-humidity corrosion is frequently treated as expected wear rather than a covered defect.

Dimmer and accessory compatibility is where it gets legally specific, and it's worth understanding the exact line. Federal rule (the FTC's anti-tying provision under Magnuson-Moss) prohibits a company from voiding your warranty simply because you used a non-branded part or service — a company can't legally require you to use its own specific dimmer just to keep the warranty valid. What a company can legally do is exclude damage that a genuinely incompatible product actually caused. In practice, that's exactly why Golden's own guide to dimmers on LED lights matters beyond just getting a clean dim — pairing a fixture with a dimmer outside its load window or driver compatibility isn't just a performance problem, it's the kind of real, caused damage a warranty is allowed to exclude.

Questions Worth Asking Before You Buy

  1. Ask for the full written warranty terms, not just the headline number, before you buy — federal law already requires it to exist as a single document for anything over $15.
  2. Ask specifically which component the headline term covers — light source and electronics, or the full fixture body and finish, or both.
  3. Ask how a claim is actually filed — a real warranty names a process and a contact, not just a promise.
  4. Don't assume a non-branded dimmer automatically voids anything — it's specifically damage caused by a genuine incompatibility that's excludable, not the mere use of a different brand.

A warranty headline is marketing. The document behind it is a legal disclosure you're entitled to see before you buy — and reading it is the difference between assuming coverage and actually having it.


— seen a lot of light fixtures in 80+ countries. Still learning what actually works in a home.

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