Prequalifying a Lamp Supplier: The Questionnaire That Prevents a Bad Season

Retailers and hospitality groups prequalify suppliers because the cost of discovering a problem mid-season is far higher than the cost of asking six questions up front. For lighting, those questions are unusually predictive: the answers map almost one-to-one onto the failures that later cost a season.

What prequalification is actually for

It is not an audit and it is not a negotiation. It is a filter that tells you whether a supplier can serve your pattern of demand at all, before you spend weeks on samples, specification and commercial terms.

The distinction matters because many buying teams skip it and go straight to product selection. That inverts the order: they fall in love with a sample and then discover the supplier cannot dispatch in their window, cannot support their carton requirements, or cannot supply documentation their compliance team needs.

A short questionnaire run early avoids that entirely. It also gives the supplier a fair chance to say no, which is better for both parties than a slow failure later.

The six questions that matter

Notice that none of these is about the product. Product quality is assessed with a sample. These six assess whether the supplier is operable for your business, which is a different and prior question.

• Where does the stock sit, and what is the dispatch commitment from that stock? Not the factory lead time. The commitment on goods that already exist in your market.
• What is the minimum order, and can SKUs be mixed to reach it? A minimum that must be met per model behaves very differently from one that can be met across the range.
• What happens when a carton arrives damaged? Who files the claim, who pays freight on the replacement, and how fast does the replacement ship?
• What documentation can you provide, and on what timeline? Safety listing evidence, country of origin, carton marking, and anything your own compliance team requires.
• How is pricing structured? Tiers, validity, and what triggers a re-quote.
• Who answers, and how fast? Response behaviour during prequalification is the best available predictor of response behaviour during the season.

Reading the answers

Strong answers are specific and slightly boring. A supplier that says goods dispatch within one business day from US stock and transit is three to seven business days is giving you something you can plan against. A supplier that says fast, or about two weeks, or depends, is telling you the same thing as a non-answer.

Watch for the gap between the sales answer and the operational answer. If the commercial contact promises something the operations contact later qualifies, that gap will reappear at the worst moment. Asking the same question of two people at the supplier is a legitimate and cheap test.

The question about damaged cartons is the most diagnostic of the six. Lamps are damage-prone, damage is certain at volume, and a supplier with a clear, immediate answer has clearly dealt with it before. How to Evaluate a Lamp Supplier Before You Commit and A Scorecard for Lighting Suppliers both build on this idea with more structure.

Finally, note what the supplier asks you. A supplier that asks about your carton requirements, your labelling standards and your delivery dock is thinking about the order rather than the sale.

Add two questions when the product will be sold rather than installed. First, what is the maximum wattage marking and the socket marking on the actual product, because those are the details a marketplace or a big-box compliance desk will reject on. Second, how is the carton marked, because What Has to Be Printed on a Lamp Carton: A Marking and Labelling Checklist is a long list and it is much cheaper to get right before production than to re-sticker afterwards.

Turning the answers into a decision

Score each answer rather than forming an overall impression. A supplier can be excellent on stock and weak on documentation, and that is a workable combination if your own compliance team can cover the gap. It is not workable if nobody can.

The scoring should be against your own constraints, not against an absolute standard. A buyer with a flexible calendar can accept a longer dispatch window that a buyer with a fixed opening date cannot, and the same supplier answer deserves a different score in those two cases.

Then place a small first order before committing to a season. A ten-unit mixed order is a cheap way to test every answer at once: it exercises the dispatch commitment, the carton, the documentation and the damage process in a single low-risk transaction.

Where prequalification fits in onboarding

For larger retailers, prequalification is the first gate of a longer process that ends with the supplier on the vendor master. The documentation requested at the prequalification stage is usually the same documentation that the vendor setup process will later require, so collecting it once and storing it properly saves a second round.

Getting Onto the Vendor Master: What a Large Retailer Needs From a Lamp Supplier describes that later stage in detail. The practical advice is to run them as one continuous process rather than two separate ones, because the second round is where most suppliers stall.

Frequently asked questions

How long should prequalification take?

A well-run exchange takes days, not weeks. If a supplier needs more than a week to answer six operational questions, that response time is itself the answer.

Should small buyers prequalify too?

Yes, in condensed form. The questions scale down but they do not disappear, because the failure modes they predict apply at ten units as much as at ten thousand.

What if a supplier refuses to answer?

Treat a refusal as a strong signal rather than a negotiation position. Most refusals are not secrecy; they are the absence of a defined process, which is exactly what the question was designed to detect.