Look, I'm not a lighting engineer. I'm an office administrator who somehow became the person responsible for buying all the lighting for our company's three locations. When I took over purchasing in 2020, I inherited a mess of mismatched fixtures and a stack of invoices that made my accounting team cringe.

Over the last five years, I've placed probably 40+ orders with Acuity Brands (mostly through their Lithonia Lighting and DTL lines), and I've learned a few things the hard way. This checklist is what I wish someone had handed me in 2020.

Before You Start: Is This Checklist For You?

This is for anyone buying commercial lighting for their own facility — not for resale. If you're a facilities manager, an office manager, or (like me) the person who got stuck with this responsibility, this is for you. It covers three common scenarios:

  • Ordering new LED fixtures for a retrofit or new build
  • Adding DTL photocontrols for exterior lighting
  • Understanding what 'how to wire a LED driver' actually means when you're not an electrician

Let's get into it.

Step 1: Nail Down Your Specs (But Don't Overthink It)

This is where most people screw up. They either order based on wattage alone (bad idea) or they get paralyzed by CRI, CCT, lumens, and beam angles.

Here's what I actually do:

  1. Start with the fixture type. Are you replacing a 2x4 troffer? Need a linear strip for a warehouse? Looking at a chandelier rectangular for a lobby? (Yes, Acuity makes those. I ordered one for our reception area.) Don't guess — measure the existing footprint.
  2. Match the color temperature. 3500K for office spaces, daytime feel. 4000K for warehouses, production areas. 3000K if you want a warm, hospitality vibe. I learned this after a client complained our break room looked like a hospital.
  3. Don't sweat CRI above 80 for most spaces. For retail or showrooms, sure, go for 90+. But for offices — 80 is fine. I wasted hours once comparing 90 vs. 95 CRI for a warehouse order. What I mean is, focus on the specs that matter most for your application.

If you're unsure, call Acuity's technical support. Actually, I've found their online product selector tool pretty decent for this. But honestly, if you can get a sales rep on the phone, do it. It saves time.

Step 2: Don't Forget the Controls — Especially DTL Photocontrols

Here's something I overlooked twice in my first year: lighting controls. You can't just buy fixtures and hope they turn on and off when you want.

For exterior lighting, Acuity Brands DTL dark to light photocontrols are sort of the standard. They're built into some of their fixtures or available as add-ons. I added them to our parking lot lights in 2023, and the building manager actually thanked me for not leaving the lot lit at noon during summer.

What to check:

  • Is the photocontrol integrated into the fixture or a separate module? Separate modules require wiring — an electrician's job.
  • What's the voltage rating? 120V vs. 277V matters. I assumed 277V once. Let me rephrase that: I bought the wrong ones. The electrician charged an extra $150 to swap them.
  • For interiors, consider Zigbee controls if you want zone-based dimming. That's what we use in our conference rooms now.

The 'ship chandelier' term is also something to note — I used it once in a search, thinking it meant something specific for marine applications. It doesn't. It's just a way to describe how a chandelier is packaged for transport. Acuity's packaging has been solid in my experience, but if you're ordering something delicate, maybe pay for the extra shipping insurance.

Step 3: Understanding How to Wire a LED Driver

OK, this is where my knowledge hits a limit. I am not an electrician. But I've had to learn enough to not sound like an idiot when talking to one.

Key things I've learned about LED driver wiring:

  1. Constant Current vs. Constant Voltage: Most Acuity fixtures come with constant current drivers. That means the driver regulates current, and voltage varies based on the load. If you're buying a separate driver for a strip light (yes, Acuity sells those), you need to match the voltage and current ratings. Mismatching is a fire risk.
  2. Check the wiring diagram. I know, no one reads those. But when I tried to wire a dimmable driver without consulting the diagram, I connected the wrong wire and the driver wouldn't turn on. The diagram was actually straightforward — I just didn't look at it.
  3. Daisy-chaining drivers: Some Acuity drivers can be daisy-chained. But the max number of drivers in a chain is typically 4-6, depending on the amperage. Exceeding that causes flickering or failure. An electrician told me that after I asked why a section of our lights was blinking.

If I remember correctly, the wiring guide on Acuity's website has a chart for driver compatibility. But don't quote me on that — I've definitely misremembered which document I was looking at.

Step 4: Watch Out for These Common Pitfalls

I've made every mistake once. Here's what I wish I'd known:

  • Check the voltage. Commercial buildings in the US often use 277V. Residential is 120V. I ordered 120V fixtures for a 277V building once. It cost $400 in restocking fees.
  • Measure physical dimensions. 'Rectangular chandelier' isn't a standard size. I ordered one that was 6 feet long for a hallway that was 7 feet wide. It looked ridiculous.
  • Lead times can be brutal. Some Acuity fixtures have 8-12 week lead times, especially if they're custom color or dimming options. Plan ahead.
  • Replacement parts: Acuity is great for replacement parts. But the part numbers change without notice. I ordered a 'replacement lens' that didn't fit because the design had been updated six months earlier.

Step 5: Budget Realistically

This isn't a precise pricing guide, but based on my orders over the past few years:

  • A basic 2x4 LED troffer: $80-120 per fixture for 3500K, 4000 lumens.
  • DTL photocontrol (add-on): $35-60 each.
  • Rectangular chandelier (statement piece): $500-2,000 depending on size and finish.
  • Wiring a single LED driver: Electrician's fee — $150-300 minimum, depending on complexity.

And factor in the hidden costs: shipping for large orders (I've paid $200+ for freight), restocking fees for returns (15-25% is common), and the electrician's visit if you wire something wrong.

Final Thoughts

Buying Acuity Brands lighting isn't complicated, but it rewards attention to detail. I've saved our company maybe $8,000 over three years by avoiding re-orders and emergency electrician calls. The flip side? I've lost credibility with my accounting team twice because I didn't check specs.

If you're tackling your first big lighting order, start with a single room. Get comfortable. Then scale up. And whatever you do — read the wiring diagram before you call the electrician. They'll respect you more, and your budget will thank you.