Tom Dixon or OEM? A 7-Step Commercial Lighting Checklist From Someone Who's Made Every Mistake

Eight years handling commercial lighting orders. Twenty-three documented mistakes. Roughly $36,000 in wasted budget. Most of it was preventable.

My first year in this business (2017), I made the classic rookie error: I compared two floor lamps by photo, picked the cheaper one, and ended up with fixtures that flickered, ran hot, and looked nothing like the approved sample. $4,700 gone, plus a two-week delay that damaged the client relationship.

By 2024, after another handful of expensive lessons, I created a pre-order checklist and made it mandatory for my team. It has caught 21 potential problems in the past 12 months. This is that checklist, updated for 2025.

It's for anyone specifying designer lighting for commercial projects — whether you're sourcing a Tom Dixon Melt floor lamp for a hotel lobby, ordering ceiling light OEM units for a retail rollout, or just working through the architectural lighting OEM vs private label decision with your procurement team. Seven steps. No theory. Every item on this list came from a real, documented failure.

Step 1: Separate the brand name from the specification

It's tempting to think "Tom Dixon floor lamp" is a spec. It isn't. It's a brand with a specific design intent, material palette, and quality bar — but those aren't interchangeable with a spec sheet. If you're comparing a Tom Dixon Melt to an OEM alternative, you're not comparing two specs; you're comparing a defined product to an unknown. You need the geometry, the material, the LED module, the driver, the beam angle, the finish, and the color temperature tolerance written down before the comparison even starts.

A design team once asked me to source "something like the Tom Dixon Melt floor lamp" at 40% below list price. The vendor's alternative had the right silhouette — that was about it. The Melt's signature glow comes from the precise diffusion of the glass sphere, and the OEM version had a harsher, hotter center beam plus a visible seam around the equator. Looked fine on a screen. Unacceptable on-site.

Checkpoint: Do you have a written spec sheet, or just a brand name and a catalog photo?

Step 2: Know which "OEM" you're actually dealing with

Here's the thing: architectural lighting OEM vs private label is not a minor semantic difference. It's the difference between who owns the design, who carries the risk, and who you can hold accountable when a batch fails.

• True OEM — you provide the design and engineering; the factory manufactures under your brand. You control the spec, and you carry the design risk.
• Private label — the factory takes an existing product, adds your branding, and hands it to you. Their design, their risk. You're buying a finished product, not a partnership.
• ODM — the factory designs a product exclusively for you, but the IP belongs to them. If the exclusivity window expires, they can legally sell a variation to your competitor.

In September 2022, I ordered 60 ceiling light OEM units for a retail rollout. The contract said "private label." I assumed the factory would stand behind their own design — it was their product, after all. They didn't. When drivers started failing in month eight, the factory said: "You approved the sample. The design was proven." The replacement cost was $11,000 out of our pocket.

Checkpoint: Have you confirmed in writing who owns the design and who carries the warranty risk for the finished fixture?

Step 3: Ask for photometric data — not just lumens

Most buyers focus on wattage and lumen count and call it done. That's the blind spot. For commercial lighting, the real questions are:

• Beam angle and beam distribution pattern
• CRI (Color Rendering Index) — and whether the R9 value is rated or ignored
• Color temperature tolerance (is it a tight ±50K, or a sloppy ±150K?)
• UGR (Unified Glare Rating) for occupied spaces

Spotlight specifications are the biggest trap. Two spotlights can both claim "12W, 3000K, 1000 lumens" and perform completely differently. One delivers a clean 24° beam with even falloff. The other throws a muddy 38° pool with a hot center and a green tint at the edges. The difference is the optic — the reflector, the lens, the diffusion material. And you can't see that in a catalog photo.

If a vendor can't provide an IES photometric file or an LDT file for the exact fixture you're ordering, treat that as a red flag. Period.

Checkpoint: Does the spec sheet include a photometric file, or just a lumen number pulled from a marketing page?

Step 4: Verify certifications with documents, not logos

A supplier once told me their fixtures were "CE compliant." I didn't verify. Turned out they meant "the component parts have CE marks" — not the assembled fixture. The shipment got held at customs and we lost a three-day installation window. Basically, the logo on their website meant nothing without the report behind it.

Per FTC guidelines (ftc.gov), product claims have to be truthful and substantiated. The discipline should apply to your lighting suppliers too. If they say UL, ask for the certificate. Ask which lab issued it. Ask which model numbers it covers. An evasive answer is the only answer you need.

Also, check whether the certification matches the market where the fixture will be installed. CE is an EU requirement. UL listing is required in many North American jurisdictions. "It's certified in our country" is not the same as "it's certified in yours."

Checkpoint: If the certificate doesn't list your exact model number, it's the wrong certificate.

Step 5: Ask what's NOT included — before you ask the price

Look, I'm not saying budget options are always bad. I'm saying they're only comparable when the total cost is visible.

The vendor who lists all fees upfront — even if the total looks higher — usually costs less in the end. I've learned to ask "what's NOT included?" before "what's the price?"

What's the gap between the headline number and the final invoice? That's where all the surprises live.

In 2024, a vendor quoted the best per-unit price for a ceiling light OEM order. The quote didn't include the $1,200 tooling fee, the $650 color-matching surcharge, or the $480 rush shipping. Final bill came in 30% higher than the headline number. The vendor who had listed everything upfront — a number that looked higher at first — ended up costing us less.

Questions worth asking: Are there MOQ constraints? Tooling costs? Setup fees? Packaging charges? Is shipping FOB or DDP? What does a second sample round cost? Who pays for warranty return shipping? What's the price for dimming compatibility testing?

Checkpoint: If the quote isn't itemized, ask why.

Step 6: Get a physical sample. Not a photo. Not a video.

In 2020, I approved a Tom Dixon Melt floor lamp alternative from an OEM supplier based on photos and a spec sheet. The production batch arrived with a visible seam along the glass sphere, a wobbling base, and a driver that hummed at 60Hz. We caught it during installation, after mounting eight units. The redo cost $890 in labor plus a one-week delay.

A physical sample is your chance to check:

• Physical dimensions and weight (they always differ from the spec sheet)
• Finish quality under real lighting conditions, not showroom lighting
• Light output with your own eyes, not just the IES file
• Heat dissipation — a fixture running hot will fail early
• Driver noise. Buzzing is common in cheap LED drivers

If a vendor says "samples cost extra" or "the production version will be slightly different," ask them to document exactly what will differ. If they can't name it, that's your answer.

Checkpoint: Has the exact final configuration been physically inspected by a human with eyes and hands?

Step 7: Read the warranty's fine print — and check the distributor's pulse

Everyone says "3-year warranty." The real question is who honors it.

I once specified a private-label architectural lighting brand with a "5-year warranty." The regional distributing partner had closed. The warranty was a PDF with a logo and no phone number. We replaced 12 failed drivers out of pocket.

Before you order: ask who services warranty claims. Ask where replacement parts are stocked. Ask whether the warranty covers labor or only the part. Ask who pays the return shipping.

Checkpoint: Can you name the person or company who will answer the phone when a driver fails in month 23?

The mistakes I keep seeing

After all these years, the pattern is consistent:

• Focusing on per-unit price and ignoring the total cost of ownership. The add-ons are where 30–50% of the budget hides.
• Assuming identical specs mean identical performance across different factories. They don't. The optic, the driver, and the assembly quality carry all the difference.
• Skipping the certification check because "they showed me a logo." Logos are not certificates. Reports are certificates.

The question everyone asks is "what's your best price?" The question they should ask is "what's included in that price?" And the follow-up: "what's NOT included?" Because the gap between those two answers is where every procurement disaster starts.

Is this checklist perfect? No. I still got burned twice in 2024 — once on a dimming compatibility issue, once on a supplier who swapped the driver brand without telling me. But the checklist caught 21 potential problems in the past 12 months. That's $21,000 that didn't go up in smoke.

Print it. Adapt it. Use it. The mistakes are out there waiting to be made — they don't need to be yours.