The most useful thing a lighting vendor ever told me was "we don't do that."
I'd called them to quote both the exterior bollard fixtures for our parking path and a grow light setup for our lobby atrium. The vendor — BEGA, a company that specializes in bega exterior lighting and architectural fixtures — said they knew outdoor installation inside and out but had no business advising me on horticultural grow lights. They pointed me to a wholesale nursery supplier instead.
That was three years ago. I've spent roughly $40,000 with them since.
Here's what I should have known before I ever picked up the phone: no single lighting vendor can be excellent at everything. Trying to find one who can was the mistake I made in my first two years managing facilities purchasing for our 180-person company. Splitting categories across specialists isn't the tidiest procurement strategy — but it's the one that stopped the rework.
The one-stop-shop mistake
When I took over purchasing in 2021, I inherited a spreadsheet with 11 lighting vendors. That felt messy to me. So I did what any efficiency-minded administrator would do: I went looking for a "full-service" lighting supplier.
The first company I found promised exactly that. Landscape lighting? Sure. Lighting chandeliers? Absolutely. Grow lights for the atrium? They had "a guy." LED strips? In stock.
Nine months and about $14,000 later — maybe $12,000, I'd have to pull the exact figure — I had a parking path that failed a security audit because the bollard lumens didn't meet spec at the required mounting height, grow lights that made the lobby plants look alarmingly plastic (wrong spectrum, apparently), and a boardroom lighting chandelier that showed up three weeks late with two hanging crystals missing.
The security audit is the one that still stings. We failed on a technicality — the bollards were installed at the right spacing, but the light distribution didn't cover the walkway edges at the height our consultant required. The vendor had quoted "standard commercial grade" and I'd assumed that meant something specific. It didn't. That was the rookie mistake: treating a phrase as a specification. Now I don't approve any exterior order without a photometric file and a printed lumen output at the actual mounting height.
The LED strips under our reception desk are their own story. The vendor's datasheet didn't cover the connection method, and I didn't think to ask how to connect LED strip lights together before we were mid-install with a ceiling void open — two 5-meter runs, a connector that wasn't rated for the ambient temperature above the tiles, and a flicker that only showed up after everything was buttoned back up. Nobody on the vendor side mentioned it. I skipped the final spec review because we were rushing and "it's basically the same as the display unit." It wasn't. $600 redo and a Tuesday afternoon I won't get back.
What specialists actually look like
After that run, I split our lighting categories across different vendors. I'm at eight relationships now — maybe nine, I'd have to check the latest onboarding. It's not a clean efficiency win. It's a different kind of overhead. But it's the difference between compliance and rework.
Exterior and architectural lighting
This is where BEGA earned its place. Our parking path, building perimeter, and loading dock all needed specification-grade fixtures that could handle weather and pass a security audit.
When I was researching bega exterior lighting options, I expected a catalog and a quote. What I got was a conversation about light distribution patterns, mounting height against our actual walkway layout, and a photometric file our security consultant could review before we ordered a single fixture. One of the bega bollard lighting options we looked at came with detailed photometric data in the first email — the kind of thing a generalist keeps "on request" and a specialist keeps on hand.
When I compared the two quotes side by side — same fixture count, same mounting height — I finally understood why the specialist's number was 40% higher. It wasn't markup. It was the photometric file, the warranty terms, and the fact that the fixture actually met the spec our audit required instead of meeting a spec the vendor had invented.
Commercial-grade bollard fixtures run roughly $400-1,200 each depending on material, output, and control options (based on our 2024-25 purchase records and publicly listed spec sheets; verify current pricing). Wall luminaires in the same tier land around $200-800. Path lights, $150-500. When the generalist quoted "about $300 each" across all three categories, they were either guessing or quoting to a lower spec than our audit required. I'll let you decide which is worse.
What most people don't realize is that "standard commercial grade" appears in almost every lighting quote and almost never means the same thing twice. Some vendors use it to mean "meets code minimum." Others mean "we sell a lot of these." Without a photometric file or a printed spec sheet, you're buying a phrase, not a fixture.
Grow lights
I didn't know there was a difference between a "plant light" and a grow light. I do now. The wholesale nursery supplier asked what we were growing and at what stage, then quoted specific spectrum ranges and PAR output data. The generalist had quoted something described as "full spectrum" with no further detail.
Here's something vendors won't tell you: "full spectrum" isn't a standard. It means whatever the manufacturer says it means. Without PAR output data or a spectrum chart, you're buying on vibes. And your atrium plants will show it within about six weeks.
Lighting chandeliers
The boardroom was the one category where I'll admit I still don't have a great process. Decorative fixture purchasing is aesthetic, not spec-driven, and that's a different skill set entirely. We ended up working with a local showroom for the lighting chandelier because they could physically show us the scale against a tape measure, not just a 2D spec sheet.
What I will say: the generalist vendor who quoted the boardroom piece should have told me they weren't the right fit for decorative. Instead, they sold us a catalog fixture without checking lead time against our board meeting schedule. That's not a lighting problem. That's a "we'll say yes to anything" problem. And it's the exact reason I now open every vendor conversation with the same question: what do you not do?
When one vendor still makes sense
I want to be honest about the limits of this approach.
Managing eight vendor relationships instead of eleven isn't exactly a clean efficiency win. It's a different kind of overhead. If your total lighting spend is under a few thousand dollars a year, or you're replacing fixtures one at a time as they fail, you might be fine with a single reliable distributor who can source what you need. At least, that's been my experience with smaller-scale buys.
And even BEGA, as strong as they've been for our exterior work, isn't going to supply grow lights or decorative chandeliers. They said so on the first call. That's the point. When I compared the vendors who listed everything on their capability sheet against the ones who said "here's what we do, here's what we don't" — the second group delivered more consistently. The ones who knew their boundaries made it easier to trust everything inside them.
The counterpoint, of course: I've had vendors promise "we can help with that" across four categories and then underdeliver on three. At our scale, that's not a gamble I can keep taking. Maybe at a smaller company with more patient stakeholders, it would be different. But I doubt it.