Who This Checklist Is For
If you're responsible for buying LED lighting for a commercial facility — whether it's Cree LED strips for under-cabinet task lighting, double downlights for a lobby, or spotlight cast fixtures for an art display — you've likely run into the same frustration: the quote you approved isn't the price you pay. Hidden costs sneak in through required drivers, installation surcharges, and compatibility surprises. I'm a procurement manager for a 300-person hospitality firm, and over the past six years of tracking every invoice, I learned the hard way that the lowest initial price often hides the highest total cost. This checklist compiles five steps I now use with every lighting purchase. The steps apply regardless of brand, but I'll use Cree examples because they're common in our industry and have solid performance data.
Step 1: Calculate Total Cost of Ownership (TCO) — Not Just Unit Price
When I first started managing vendor relationships, I assumed the lowest quote was always the best choice. Three budget overruns later, I realized total cost of ownership matters way more than line-item price. For a recent retrofit of 200 double downlights, Vendor A quoted $28 per unit. Vendor B quoted $24. I almost went with B until I asked: 'What's not included?' Turns out, Vendor B charged separately for drivers ($8 each), wiring harnesses ($3 each), and minimum order shipping ($450). Vendor A's $28 included everything. That's a 17% difference hidden in fine print.
What to do: Ask every vendor to provide an inclusive TCO estimate covering the product, any required drivers or adapters, shipping, installation, and disposal of old fixtures. Get it in writing. As of April 2025, Cree's official catalog lists driver-compatible part numbers for each LED strip and downlight — use those to verify you're quoting the complete system, not just the LED module.
Step 2: Verify Compatibility — Don't Assume 'Works With'
A common mistake is assuming a Cree LED strip will work with any dimmer or controller. Last year, we installed spotlight cast fixtures in a conference room with a phase-cut dimmer that wasn't on Cree's compatibility list. The result was a strobe effect that cost $1,200 in rework and new dimmers. For double downlights, check the voltage range and ensure the junction box can accommodate the driver's dimensions.
Checklist:
- Request the manufacturer's compatibility matrix (Cree publishes one on their site).
- Confirm that the driver included can handle your input voltage (120V/277V common in commercial buildings).
- For LED strips, verify cut-length tolerances and any minimum run requirements. Cree's XTE strips, for example, can be cut every 50mm, but the first segment must be powered from the correct end.
Step 3: Scrutinize Performance & Energy Efficiency Claims
Every manufacturer claims high efficacy, but raw numbers only tell part of the story. I've learned to look for third-party verification like ENERGY STAR certification or LM-79 test reports (source: DOE Lighting Facts, January 2025). A Cree double downlight rated at 90 lumens per watt may sound good, but if the color rendering index (CRI) is below 80, the space will look murky — leading to tenant complaints and early replacement.
Red flags:
- No LM-79 or LM-80 data available on request.
- Efficacy numbers that only apply to the bare chip, not the complete fixture.
- Specs that say 'up to' without a floor value. For example, 'up to 150 lm/W' could mean the actual delivered output is much lower.
For flashlights using Cree LEDs (e.g., tactical flashlights with the XHP70 chip), brightness is often stated as '10,000 lumens' — but that's typically peak from the bare emitter. The real flashlight output is 30–50% less due to lens and thermal throttling. Ask for measured ANSI FL1 standards if that matters for your application.
Step 4: Understand Warranty & Maintenance Terms
A long warranty can be a strong signal of reliability. Cree typically offers 5-year or 10-year warranties on its LED fixtures and modules. But I've seen cases where the warranty covers only the LED chip, not the driver or labor to replace it. That repair can easily cost more than the original fixture. In Q2 2024, when we switched vendors for a 100-unit downlight retrofit, we made sure the warranty included driver replacement and on-site labor for the first two years — which added 8% to the upfront cost but saved an estimated $2,400 in potential service calls.
Questions to ask:
- Is the warranty pro-rated (gets less valuable each year)?
- Does it cover parts only, or also labor and shipping?
- What is the process for filing a claim? Do we need to return the entire fixture or just the defective component?
Step 5: Plan for Installation — How to Connect Light Fixture Wires
Even if you hire an electrician, understanding the basics of connecting fixture wires helps you avoid costly change orders. Most Cree LED fixtures come with a pigtail or a quick-connect harness. For a typical double downlight, you'll need to connect:
- Line (black) – typically 120V or 277V
- Neutral (white)
- Ground (green or bare copper)
If the fixture has a separate driver box, the wiring may include a low-voltage side (marked with caution). Always turn off the circuit breaker before touching wires. Use wire nuts rated for the fixture's wire gauge (18 AWG or larger). For LED strips, the connection is often a 2-pin connector or soldering — check Cree's installation guide for your specific strip model. A common oversight: the strip requires a voltage drop calculation if the run exceeds 16 feet. A too-thin wire gauge causes dimming at the tail end.
Pro tip: Request a mock-up install with your electrician before committing to 100+ units. That way, any wiring quirks show up early. I've been surprised twice by 'standard' installation assumptions that turned into extra wiring loops.
Common Mistakes to Avoid
Even after using this checklist for years, I still catch myself — and colleagues — slipping into bad habits. Here are three that keep cropping up:
- Ignoring dimmer compatibility. You might think 'any LED dimmer works' — it doesn't. Cree publishes a list of tested dimmers for each fixture. Start there.
- Underestimating installation labor. Hidden costs like covering old junction boxes or mounting brackets for double downlights in drop ceilings can add $15–25 per fixture.
- Choosing LED strips solely by lumens per foot. Light distribution matters more than raw output. A Cree LED strip with a medium beam angle (120°) might wash a countertop evenly, while a narrow strip (60°) creates hot spots. Test a sample before ordering bulk.
Honestly, I'm not sure why some vendors are consistently opaque about these factors — my best guess is that it's easier to win a price comparison than a TCO comparison. As of Q1 2025, I've built a simple cost calculator that pulls in compatibility, installation, and warranty data for any quote I receive. It's not perfect, but it has cut our annual lighting spend by roughly 12% compared to our old 'lowest bidder' approach. Verify current pricing and compatibility lists with suppliers — the market changes fast.
"The vendor who lists all fees upfront — even if the total looks higher — usually costs less in the end." That's been my experience across 200+ orders. Transparency builds trust, and trust saves money.