Warranty & RMA Process
How to write warranty terms that actually work.
1. Why it matters
A warranty is only as good as the process behind it. For LED products the headline "5-year warranty" means little without defining what counts as a failure, who pays the freight both ways, how fast replacements ship, and what reserve of spares exists. A clear RMA (return merchandise authorisation) process turns an inevitable failure rate into a manageable cost line instead of a customer-relationship crisis.
2. Define what a warranty failure actually is
LED failure is rarely a dead lamp — it is light output decaying below a threshold, colour shifting, or a driver failing. Anchor the warranty to measurable criteria so "it still lights up" cannot be used to reject a valid claim.
- Lumen maintenance: L70 (70% of initial lumens) at the rated hours is the usual failure line.
- Colour shift: Δu'v' beyond ~0.007 is a defensible failure threshold.
- Catastrophic: driver failure, flicker, or dead units within the term.
- DOA (dead on arrival): a separate, faster track with a defined window (e.g. 30 days).
3. The RMA workflow that keeps cost down
A good RMA loop is short and evidence-based. The customer submits the model, date code and a photo or a measured reading; you or the supplier issue an RMA number; the unit is returned or, for low-value items, scrapped in the field with photo proof; a replacement or credit is issued. Batch returns quarterly to cut freight, and always capture the date/lot code so you can trace a systemic defect to one production batch.
| Term | Buyer-safe default |
|---|---|
| DOA window | 30 days from receipt, supplier pays both-way freight |
| In-warranty freight | Supplier pays replacement outbound; batch returns |
| Replacement lead time | Ship with next PO or within a stated SLA |
| Spares reserve | 1-3% of order held or committed by supplier |
4. Reserve for the failure rate you will actually see
Even good LED product carries an early-life failure rate; plan for it instead of being surprised. A 0.5-2% first-year field failure is realistic for commercial fixtures. Fund it two ways: hold a small spares stock (1-3% of units) and keep a warranty reserve in your pricing. A supplier who claims "zero returns ever" is either new to the market or not counting — ask for their actual field failure PPM.
5. Checklist
- Anchor the warranty to L70 and Δu'v', not "still lights up"
- Set a DOA window with supplier-paid both-way freight
- Require the date/lot code on every RMA for traceability
- Negotiate a 1-3% spares reserve held by the supplier
- Batch in-warranty returns quarterly to cut freight