A three-year warranty sounds better than a one-year warranty until you read what it excludes. For LED displays, the useful questions are about response time, spare parts and bin consistency — not about the number of years.
What a standard warranty covers
Most LED suppliers warrant the display against manufacturing defects for a fixed period, commonly one to three years. In practice that means:
- Covered: dead pixels above a stated threshold, driver IC failure, power supply failure within the period, module defects not caused by handling.
- Usually excluded: physical damage, water ingress from incorrect installation, over-voltage, lightning, unauthorised repair, and wear items such as connectors and cables.
Read the pixel threshold carefully. “Zero dead pixels” is rare; a common clause allows a small number per module before replacement.
The questions that actually matter
1. What is the response time? A warranty that takes six weeks to process a module is not useful during a live season. Ask for the stated response time in working days, and ask whether advance replacement is available.
2. Are spare parts guaranteed for how long? This matters more than the warranty length. A screen you cannot buy a power box for in year four is a liability. Ask for a written spare-parts availability commitment — five years is a common benchmark.
3. Will replacement modules match? LED bins shift between production runs. A replacement module from a different bin can be visibly different in the same wall. Ask how bin consistency is handled on repeat orders, and whether the supplier holds your bin record.
4. Who pays freight? On an overseas order, return freight can exceed the value of the part. Ask whether the policy is part-only, part-plus-freight, or advance replacement with the faulty part returned later.
5. What is the spares ratio recommendation? A supplier who understands rental will recommend a ratio — commonly 5 percent cabinets, 10 percent modules. A supplier who has never supported a fleet will not have an answer.
Spare parts to hold regardless of warranty
| Part | Why hold it | Typical ratio |
|---|---|---|
| Modules | highest failure rate, fastest swap | 10% of fleet |
| Power boxes | second highest failure rate | 1 per 10 cabinets |
| Receiving cards | cheap, and one failure stops a run | 2–3 per controller |
| Cabinets | damage, simultaneous bookings | 5% of fleet |
| Cables and connectors | consumable in practice | 10% of stock |
These figures are planning assumptions, not guarantees. Track your own failure log for a year and the real ratios will emerge — see the maintenance schedule for how to log them.
What “certified” should mean
CE, RoHS and FCC are commonly claimed. Ask for the certificate numbers and the test house, not just the logo. A certificate that cannot be produced on request is not a certificate.
For export markets, check whether the certification matches the destination: CE for Europe, FCC for the US, and local equivalents elsewhere. A CE mark does not satisfy a US customs broker.
Contract terms worth negotiating
- Advance replacement on modules and power boxes for the first 12 months.
- A written spare-parts availability period, with a price list at time of purchase.
- Bin record retained against your order number.
- Warranty transferable if you sell the fleet.
- Response time stated in working days, with a named contact.
Common mistakes
- Comparing warranty length only. A one-year warranty with 48-hour advance replacement beats a three-year warranty with a six-week turnaround.
- No spares budget. Spares are part of the purchase, not an afterthought.
- Buying the cheapest second batch. A different bin on the same wall is a visible problem.
- No written spare-parts commitment. Verbal assurance is worth nothing in year four.
- Ignoring freight. On cross-border orders, freight terms decide whether the warranty is usable.
Frequently asked questions
How long is a typical LED display warranty?
One to three years for the display, with a shorter period often applied to power supplies. Ask for the breakdown rather than a single figure.
Does the warranty cover dead pixels?
Usually, above a stated threshold per module. Ask for the threshold in writing.
Are spare parts available after the warranty ends?
Only if the supplier commits to it. Ask before purchase, not after.
Can I install it myself and keep the warranty?
Often yes, if installation follows the supplied guidance and is done by a competent installer. Check whether self-installation voids coverage.
Ask us for the written terms
We will send the warranty terms, the spare-parts price list and the certification documents before you order, not after. Message us through the contact page, or start with the rental LED buying guide.