A Purchasing Story: Kenall Commercial Lighting, Downlight OEM, and the High Bay Specification Guide I Wish I Had Used

January 2024: The lighting project that looked simple

I am the office administrator for a 250-person company. I manage facilities and office purchasing—roughly $180,000 a year across 12 vendors. I report to operations and finance, which means every project has two audiences: the people who have to live with it and the people who have to pay for it.

In January 2024, facilities handed me a project that sounded straightforward: replace the aging fluorescent lighting in three offices and one distribution warehouse. The warehouse had 24-foot ceilings. The offices had old recessed cans and a mix of track fixtures from two different remodels. My first thought was, how hard can light fixtures be? Buy boxes. Install boxes. Done.

Famous last words.

The first quote was the cheapest. That was the problem.

I sent a request to five vendors. I asked for pricing on ceiling lights, high bays, downlights, and track fixtures. One quote came back at $18,400. It was the lowest by about $9,000. I put it at the top of my spreadsheet.

Then I started asking questions. Did the quote include freight? No. Controls? No. Emergency backup? No. Removal and disposal of the old fixtures? No. Installation? No. The vendor said those were TBD. Not ideal, but workable, right?

Wrong. In March 2024, the warehouse high bay quote went from $18,400 to $27,900 after freight, lighting controls, emergency inverters, and disposal were added. Installation pushed the real number past $33,000. I had already told my VP the ballpark was $20,000. That conversation was not fun.

The March 2024 change order changed how I think about commercial lighting quotes. The unit price was never the price. It was only the first line of the invoice.

Where the downlight OEM and track lighting private label quotes got tricky

Here is the thing: OEM and private label lighting can be a no-brainer. You can get better pricing, custom finishes, and lead times that work. But only if the vendor can document what they are selling.

I had one downlight OEM quote that looked great on paper. The fixture had the right lumen output and color temperature. But when I asked for the exact model number and DLC listing, the answer was vague. I got a catalog sheet, not a listing. Then I asked for LM-79 and LM-80 reports. Radio silence.

The track lighting private label quote had the same issue. The price was about 30% lower than a branded option. But the vendor could not tell me if the exact SKU was on the DLC Qualified Products List, or whether the driver was UL recognized. That was a red flag. Put another way: cheap fixtures that fail inspection are not cheap.

I used Kenall commercial lighting as one benchmark. I am not saying every project needs a specific brand. I am saying I needed a baseline for documentation. A Kenall ceiling light spec sheet gave me LM-79 data, a DLC listing, and warranty terms without three follow-up emails. That made it easier to compare everyone else.

The high bay specification guide I wish I had used sooner

I am not an electrician. I do not have an engineering degree. But I learned that a high bay specification guide is not just for engineers. It is a purchasing tool. It forces every vendor to answer the same questions in the same format.

For our warehouse, the guide covered mounting height, ambient temperature, voltage, controls compatibility, lumen maintenance, and emergency requirements. For offices, it covered CCT, CRI, flicker, dimming, and trim options. For the lobby downlights, it covered beam angle and glare control.

I also added a compliance block. I asked for the exact model number, the DLC listing, UL 1598, IES LM-79 and LM-80 reports, and the warranty document. For emergency lighting, I asked how the fixture met NFPA 101 Life Safety Code requirements. For energy code, I asked how the design addressed ASHRAE 90.1 and IECC lighting power density limits.

Check the current DLC Qualified Products List for the exact model and wattage. UL 1598 is the safety standard for luminaires. IES LM-79 and LM-80 cover photometric performance and lumen maintenance. For emergency lighting, NFPA 101 sets illumination and exit requirements. ASHRAE 90.1 and IECC influence lighting power density and controls.

If a vendor could not fill out those fields, I did not necessarily reject them. I moved them to a different risk category. Sometimes that meant a higher deposit or a sample order. Sometimes it meant walking away.

How I rebuilt the comparison around TCO

After the March surprise, I stopped comparing quotes by unit price. I built a total cost of ownership sheet. It was ugly and imperfect, but it was better than guessing.

• Unit cost and freight
• Controls and sensors
• Emergency inverters or batteries
• Installation labor
• Old fixture removal and disposal
• Commissioning and programming
• Downtime during installation
• Potential rework if a listing or spec failed

The $18,400 quote turned into $33,900. Another quote came in at $27,500 all-inclusive, with DLC-listed fixtures, emergency gear, and controls. On unit price, the first quote still looked lower. On TCO, it was not even close.

I wish I had tracked my hours more carefully. I do not have hard data on how much time I wasted chasing missing spec sheets. What I can say anecdotally is that the all-inclusive vendor saved me at least two weeks of email and one very uncomfortable finance meeting.

What we actually installed

We ended up with a mix. The offices got Kenall ceiling lights in corridors, break rooms, and restrooms. The warehouse got DLC-listed high bays after I ran every option through the high bay specification guide. The conference room track lighting went to a private label track lighting supplier that finally produced the exact DLC listing and a sample. The lobby downlights came from a downlight OEM that provided LM-80 data before the order was released.

Was it the cheapest mix? No. Was it the lowest total cost? Yes, based on our numbers. The project finished about two weeks late, mostly because I restarted the spec process. But we avoided a rework cycle that would have cost more than the delay.

Facilities calculated a ballpark 28% lighting energy reduction by comparing fixture wattage before and after. That is an internal estimate, not a utility-verified number. I want to say we installed 480 fixtures, but don't quote me on that. It was in the 450 to 500 range.

What I would do differently

Looking back, I should have written a one-page specification before I asked for any quotes. At the time, I thought I was saving time by letting vendors propose solutions. I was actually creating an apples-to-oranges mess.

I also should have asked for compliance documents upfront. Not after the quote. Not after the purchase order. Upfront. If a vendor cannot provide the exact listing for the exact model, that is information. It tells you where the risk lives.

My experience is based on four sites and about 600 fixtures. If you are working with healthcare, cleanroom, or hazardous environments, your requirements will be stricter. I cannot speak to those from personal experience. But the principle is the same: the lowest quote is not the lowest cost if it leaves you exposed.

Bottom line: if you are buying commercial lighting, ask for a high bay specification guide, a TCO sheet, and proof of listing before you sign. It is not glamorous. It is just cheaper in the end.