A warranty is a document, not a number. What honest 2-5 year policies include, what they exclude, and the claims mechanics that decide whether the promise is worth anything.
2026-09-10 · 8 min read · Compliance guide

"5 years warranty" is the most quoted and least examined line in lighting commerce. Read forty policies in the export market and you will find the same number wrapped around entirely different promises: some cover the driver and the LED module with a defined claims process; others cover "defects" vaguely, exclude everything that actually fails, and quietly require the buyer to prove the failure was the factory's — which, without failure-analysis machinery on the supplier side, means the buyer loses. The professional standard is the opposite: a warranty that names its coverage, its exclusions, its evidence rules and its remedies, in writing, before the order. This guide is that document, section by section, in the form AURELUX uses when structuring warranty terms with its certified partner factories — terms that follow this site's working band of 2-5 years by product line, with every figure illustrative and confirmed per order.
| Coverage item | What it means in practice | Why it is on the list |
|---|---|---|
| Defects in materials and workmanship | The base promise: the product as built does not match the agreed specification and fails because of it | Everything else hangs on this definition being tied to a written spec, not a sample memory |
| Driver and control gear failures | Replacement of failed drivers within the term — the single most common real-world failure item | The driver is 15-25% of unit cost (illustrative) and most of the service events |
| LED package and lumen maintenance | Failures per the datasheet's claims — L70/L80-class maintenance over the warranty term, not just dead-or-alive | Datasheet lifetime claims are sales material until the warranty makes them binding |
| Color consistency | Replacement of units drifting outside the agreed SDCM window relative to the batch | The complaint that arrives two years later as "your lights don't match anymore" |
| IP seal integrity | Ingress failures under stated installation conditions for rated fixtures | Outdoor and industrial programs live or die on the seal |
| Finish and anti-corrosion | Coating failure within the environment class the fixture was sold for | Coastal and industrial atmospheres test the plating and powder-coat, not the LED |
Exclusions are not fine print to hide behind; they are the boundary between factory responsibility and installation reality. Expect — and accept — exclusions for: surge events above the stated protection level (a fixture specified at 10 kV/10 kA surge protection is not warrantied against a direct strike; higher protection is an order option); wrong dimmers or control systems — pairing an integrated LED module with an incompatible phase-cut dimmer is an installation fault, and flicker complaints land there; installation errors — overloaded ceiling boxes, crushed cables, seals compromised at assembly, poles not rated for the fixture's wind load; operation outside spec — voltage out of range, ambient beyond the rated temperature, use in environments the fixture was not certified for; and unauthorized repair or modification, which voids the analysis trail a claims process needs. The test of a fair exclusion list is whether each item traces to something the buyer, installer or site controls — exclusions that exclude the driver or the seal are not exclusions, they are exits.
A warranty without a claims mechanism is a mood. The working mechanics, in the order disputes actually follow: the buyer reports the failure with evidence — model and batch or serial number, purchase reference, photos or video of the installed unit, and the failure description; the supplier runs failure analysis — sometimes requested-back units, sometimes a documented photo protocol — and answers with a finding: manufacturing defect, site condition, or installation fault; the remedy follows the finding — replacement parts or units for confirmed defects, with the parties agreeing in advance whether replacement is full unit, board-level or driver-only; and freight responsibility is stated by case type — a workable norm is supplier-paid freight on confirmed defect replacements for the first years, buyer-paid otherwise (illustrative). Two structural additions separate serious suppliers from the rest: a spares allowance — 1-3% of units per program shipped with the order (illustrative, per project norms) so a three-year failure is a spare in a box rather than an air shipment — and batch traceability, because a warranty against "the product" is enforceable only against "the batch" you can prove shipped.
| Product line | Working warranty band | What it should emphasize |
|---|---|---|
| Commercial fixtures (downlights, panels, track) | 2-3 years | Driver replacement, flicker-free dimming behavior per spec, finish |
| Industrial fixtures (high bay, tri-proof, canopy) | 3-5 years | Thermal design, surge protection level, lumen maintenance claims, IP seal |
| Outdoor architectural (street, flood, area) | 3-5 years | Anti-corrosion finish by environment class, surge, seal integrity, bracket hardware |
| Solar lighting | 2-3 years, split per component | Battery as the wear item with its own shorter term; panel and luminaire separate lines |
| Decorative lines | 2-3 years | Finish and structural integrity (weight-bearing parts), light engine, natural-material variance carve-out |
Bands are illustrative working terms for this site's programs; real quotes confirm the term, coverage document and claims process per order.
The component decisions that make warranties honest — driver brands, surge levels, lumen maintenance — are covered in how to compare LED driver brands and L70/L80 lifespan ratings; the terms context for buyers sits on our wholesale terms and contractor terms pages, with the compliance backdrop on the certifications page.
Beyond the standard band, two structures appear on larger programs and deserve a buyer's arithmetic. The extended warranty option — a priced extension from, say, three years toward five on commercial lines — is worth its premium only when the underlying failure math supports it: named-brand drivers with their own long warranties, documented thermal design and a claims process that has actually performed during the standard term. Buy extensions from suppliers who have honored claims, not from quotations. The proration structure — declining replacement value after an initial full-coverage period — is a legitimate way suppliers keep long terms affordable, provided the schedule is explicit: what percentage in year four, what in year five, applied to unit replacement or repair, decided in the document rather than negotiated during a failure. Programs that expect long service commitments — municipal retrofits, hotel maintenance contracts — should model both structures against their actual replacement logistics: an honest prorated five-year term with local spares routinely outperforms a nominal longer term with ocean-freight replacements. The principle is the same one this whole guide turns on: the warranty's value is decided by its mechanics, and the mechanics are always in the document.
The lifetime ratings a warranty should make binding — read properly.
The component whose own warranty underwrites the fixture's policy.
Seal integrity is a warranty line — here is what the ratings actually test.
Destination-by-destination compliance mapping for every program.
Coverage documents, claims processes and 1-3% spares lines structured per program via certified partner factories — send the item list within 24 hours.