When to Use This Checklist

If you're responsible for procuring lighting controls and fixtures for a commercial or industrial facility — and you've been burned by hidden fees, mismatched specs, or premature failures — this checklist is for you. I manage the lighting budget for a mid-sized manufacturing company (about $180k in annual spend on lighting), and over six years I've tracked every invoice, compared dozens of vendors, and documented what actually drives costs.

This isn't about theory. It's the exact 5-step process I use before any purchase over $2,000. The steps work whether you're buying from Acuity Brands, Signify, or a local distributor. But I'll use Acuity (particularly their controls and fixtures) as the running example because they're the ones I have the most data on.

Step 1: Map Your Existing Wiring — Especially the Neutral Wire

I learned this the hard way. When I first started specifying controls, I assumed any smart switch or photocontrol could be dropped into any junction box. That assumption cost us a $1,200 redo on a single floor.

Here's the reality: many commercial lighting controls (especially DTL photocontrols and occupancy sensors) require a neutral wire at the switch location. If your building was wired before the 2011 NEC code update, you might not have one. And retrofitting neutrals is expensive — we paid an electrician $450 per fixture location for that 'small' fix.

Check this now:

  • Panel schedules — do they indicate neutrals in switch boxes?
  • Year of original construction — pre-2000 buildings are risky.
  • Ask your electrical contractor for a quick audit (budget $200–$500 for a 10,000 sqft space).

Acuity's DTL (dark-to-light) photocontrols, for example, come in both 3-wire (neutral required) and 2-wire options. If you're evaluating their controls, confirm the SKU matches your wiring (note to self: always ask for the wiring diagram before ordering).

Step 2: Match Fixture Types to Actual Use — Not Aspiration

Conventional wisdom says 'buy the most flexible fixture' — a multi-wattage, multi-CCT LED that can be adjusted later. In practice, that flexibility adds 15–30% to the upfront cost, and our team has never actually used the adjustment feature on the 50 fixtures we bought with it (surprise, surprise).

For most commercial spaces, a fixed-output troffer or strip light at 4000K 90+ CRI is all you need. Acuity's line of Acuity Brands lighting fixtures includes the LDN4 LED strip and the A-Line troffers — both available in fixed configurations that cost less and have fewer failure points. I compared quotes last March: the adjustable version of an LDN4 was $94/unit; the fixed version was $68. On a 200-fixture order, that's a $5,200 difference without losing any performance.

One exception: If your space changes function every 6 months (think flexible offices, maker spaces), the adjustable premium might pay off. Otherwise, save the money.

Step 3: Verify Control Compatibility Before You Commit

Everything I'd read about lighting controls said 'ensure all components speak the same protocol.' That's true — but it's not the full story. The bigger hidden cost? Platforms that claim to be 'universal' but lock you into proprietary devices and licensing fees.

When we evaluated Acuity Brands lighting controls (nLight, DTL, and the newer Atrius platform), I was initially impressed by the breadth. But then I looked at the total cost over 5 years:

  • nLight wired system: $4,200 upfront + $0 annual license — but requires dedicated low-voltage wiring.
  • DTL wireless controls: $6,800 upfront + $400/year cloud subscription — no new wiring, but ongoing cost.

I ran the numbers in my TCO spreadsheet (which, honestly, I built because I got burned on hidden fees twice before) and found that for our fixed-layout warehouse, the wired nLight was cheaper by $1,600 over 5 years. But for a rapidly reconfigurable office, the wireless would win.

The key question: Does the control system play well with third-party fixtures? Acuity's nLight works best with their own drivers, but DTL can be paired with any 0-10V dimmable driver. If you already have a favorite fixture vendor, don't assume compatibility — ask for a sample and test it.

Step 4: Calculate Total Cost, Not Unit Price

My rookie mistake: picking the vendor with the lowest line-item price. I almost signed a contract with a competitor because their photocontrol was $18 cheaper per unit. Then I realized their 'free' cloud dashboard required a $50/month enterprise plan — which for our 75 sensors meant $4,500 over 3 years. Acuity's DTL mobile app is included at no extra cost (not that it's perfect, but there's no separate fee).

Use this checklist for TCO:

  • Hardware: List price + shipping + any 'minimum order' surcharges.
  • Installation: Electrician labor (often higher for new wiring).
  • Commissioning: Who sets up the software? Is training included?
  • Maintenance: Replacement parts availability and cost. Acuity's manufacturing in Crawfordsville, IN and Conyers, GA means lead times are 2–5 days — a big plus.
  • Software/cloud fees: Monthly or annual? Can you self-host?
  • Disposal: End-of-life recycling costs (often overlooked).

I compared 8 vendors over 3 months using this matrix. The 'cheapest' option (a no-name brand) had a 3-year TCO of $31,200. Acuity's solution came in at $33,400 — only 7% more, but with half the failure rate based on my 6-year tracking data.

Step 5: Plan for the Next 10 Years — Not Just the Next Quarter

This is where the expertise boundary principle kicks in. A good vendor tells you what they're good at and what they're not. Acuity is excellent at commercial LED fixtures and networked controls — their DTL line is robust, their nLight ecosystem is mature. But if you need decorative residential fixtures (say, a chandelier for a lobby), they're not the best choice. Their catalog has very few SKUs in that category. A specialist decorative supplier will beat them on selection and aesthetic options.

Similarly, if your project involves outdoor area lighting for a sports field (the kind of 'spotlight' application a Verizon-type client might need), Acuity's outdoor lineup is solid but not market-leading. For that, a company like Cooper or GE might have deeper expertise.

Don't be afraid to split the order. Buy the controls and workhorse fixtures from your specialist (Acuity), and the decorative or niche items from a different vendor. My procurement policy now requires a minimum of 3 vendor contributions per project, because no single brand dominates every category (experience override: I used to believe in 'one-stop-shop' savings, but the data showed otherwise).

Common Mistakes & Final Tips

  • Don't skip the pilot test. We install 5–10 units first, run them for a month, and measure actual energy use vs. projection. That pilot saved us from a $14,000 mistake when a competitor's sensor triggered falsely at night.
  • Read the fine print on warranties. Acuity's standard 5-year LED warranty is good — but the driver warranty might be only 3 years. Know the difference.
  • Network with other procurement managers. I learned about the neutral wire issue from a colleague at a facility managers forum. (Mental note: I really should document our lessons learned and share them.)
  • Remember: The vendor who says 'this isn't our strength — here's a supplier who does it better' earns trust for everything else. That's the kind of relationship that saves you from $1,200 redo's.

Prices referenced in this article are from Q1 2024 quotes and may vary. Always verify current pricing with your distributor.