Lighting is the part of a project that looks simple until the invoice arrives. On a lighting buy, the cheapest price is rarely the lowest total cost of ownership. In six years of purchasing for a 75-person horticulture company, I’ve watched one fixture quote that looked 18% cheaper than the nearest alternative finish 7% above that same alternative after freight, controls, mounting, and labor were included. The fixture wasn’t the problem; my comparison method was.
I’m a procurement manager, not an electrician or lighting designer. I manage a lighting and controls category that has added up to roughly $180,000 in tracked spend, and every order sits in the same cost system. My job isn’t to pick a pretty light. It’s to pick a light that doesn’t create a surprise second invoice after installation.
Where the hidden lighting costs live
When I compare quotes, I build a total-cost table before calling a vendor. Unit price is only the first row. Here are the rows I add now:
- Freight and handling: Is it included, and at what order volume?
- Voltage compatibility: Does the fixture match the circuit, or will we need a transformer or driver change?
- Controls: Will it work with the current dimmer, timer, or controller, or does the control system need a new part?
- Mounting hardware: Hanging kits, brackets, lenses, and adapters often arrive as separate line items.
- Energy and driver life: A 40-watt difference matters if the fixture runs 12 hours a day.
- Warranty and spares: Who pays shipping on a warranty claim, and how much labor does replacement take?
That list sounds unglamorous. But when I audited our 2023 spending, 27% of our project overruns came from mounting hardware and controls, not from the fixtures themselves. That audit is why I now treat every lighting purchase as a system purchase.
How I evaluate a Gavita grow light
Does this mean you should avoid a Gavita grow light? No. I’ve specified Gavita fixtures in commercial grow projects and would do it again when the room design calls for them. But I don’t choose a fixture because of brand confidence alone. I choose it when every part of the installation has a known answer.
Last year, our grow team asked me to evaluate a Gavita 1900e LED for a new flowering room. My first response wasn’t, “Looks great, order it.” It was: What voltage do we have at the drop? What controller will talk to it? How do we hang it at the planned ceiling height? How much do replacement drivers cost? And who performs warranty service if the fixture fails in week 40?
Those questions are not doubts about the equipment. They are the same questions I use for every capital light purchase. Gavita publishes current specifications and compatibility information on its own product pages at gavita.com, and that is where I start. A manufacturer’s spec sheet is more useful for procurement than a video review, because it gives the electrical contractor the exact data needed to quote the installation.
The capiz chandelier lesson: the fixture is not the project
The same framework made me look at a capiz chandelier differently during a facility refresh. The design called for a chandelier made of translucent capiz shells in the entry lounge. That part was easy to buy. But the designer also asked for a spotlight streaming across the shell surface to highlight the texture. That meant separate track heads, a compatible dimmer, and an extra aim-and-focus visit. None of it appeared on the chandelier quotation.
To use the phrase in procurement terms: “spotlight streaming” describes an effect, not a product category. If a vendor quotes it, ask for beam spread, lumen output, lamp life, and fixture count. The descriptive words don’t tell you what the hardware will cost.
A capiz chandelier also has maintenance costs that don’t show on the sales page. Ask whether replacement shells are available, what cleaner is safe, and whether humidity will damage the material. Those are every bit as real as spare drivers for a grow light.
What is a 3 way light switch and why it changes a quote
Every few months, a project manager asks me: what is a 3 way light switch? In simple terms, it lets you control one light from two separate locations, like both ends of a hallway or the top and bottom of stairs. It is a small control, but the cost is rarely the switch itself.
If you install 3 way switches before drywall, the added cost is relatively small. If you add them after walls are finished, the wiring path, drywall repair, and repainting can cost more than the fixture. That is why my lighting layout review includes every switch location. Control placement is not an afterthought. It is a line item.
When the total-cost view can be wrong
I’m not saying the lowest first cost is never the right answer. If you need temporary lighting for a two-month project, if installation is trivial, or if the fixture will be replaced before it fails, a low-cost option can be rational. And if you’re buying a one-off decorative piece that makes the client happy, total cost of ownership might not be the value that matters most. That’s fine, as long as you make that call before the order, not after the surprise invoice.
Lighting pricing and specifications move quickly. This is based on my procurement records as of January 2025. Verify current product documentation and freight quotes before you commit to a budget.
Buy the light that fits the whole circuit. The quote is only the beginning.