The most expensive lighting decision isn't which brand you buy. It's deciding whether to repair what you have, retrofit it with LED, or call in a professional. There is no universal right answer. What makes sense depends on the fixture's age, how it's used, and whether you're counting total cost of ownership or just the unit price.
I've handled purchasing and facilities coordination for a 200-person company since 2020—roughly $75,000 a year across 8 vendors. Lighting orders cross my desk at least quarterly, and I've made nearly every mistake available in this category. Including one that cost me $190 on a fixture that was supposed to save me $80.
If you're staring at a broken under-cabinet light, an old recessed fixture that runs hot, or a wall switch that feels unsafe, here's how to sort it out. Three situations, three answers: a young fixture that needs a part, an old fixture that needs retirement, and a control issue that needs a licensed pro.
The point is never "can I fix it?" It's "should I fix it, given what everything costs over the long run?"
Situation 1: The Fixture Is Young. The Part Is Available. Fix It.
GE under cabinet lighting replacement parts are the right move when the fixture itself is in good condition and the failing component is minor. Read that again: the part, not the fixture. A connector, lens, or driver that costs $30-60 can extend the life of an otherwise solid LED fixture for years.
The key condition: the fixture is already LED. If that's true, there's no energy efficiency upgrade left on the table. You're not gaining anything by replacing a perfectly efficient fixture with a different perfectly efficient fixture. Repair and move on.
Here's what I learned the hard way. In early 2023, one of our under-cabinet fixtures in the break room stopped working. I ordered an off-brand replacement—about $80 cheaper than the GE equivalent. Installed fine. Worked for four months. Died. The third-party vendor didn't carry the model anymore, and I couldn't match the wiring. I ended up buying the GE fixture anyway—and paying an electrician to redo the first installation attempt.
That $80 "savings" turned into roughly a $190 loss. (Which, honestly, felt excessive for a learning moment.) Now I calculate total cost of ownership before comparing any vendor quotes. Unit price is just the opening bid.
One more thing on parts: if the fixture is relatively new, check whether it's still under warranty. I've gotten a $50 GE driver replaced at no cost because we had the purchase date documented. That's the kind of thing that makes my finance team happy.
Situation 2: Old Fixtures, Old Technology—Run the Retrofit Math
Here's where the conventional wisdom fails you. "If it's not broken, don't replace it" sounds sensible. But with pre-LED downlights, it's often the more expensive choice.
This scenario is for recessed downlight fixtures from the incandescent or early-CFL era. If your fixture is already LED—say, a GE LED recessed lighting unit from the last few years—you're probably in Situation 1 territory: replace the failed part, keep the fixture. But for the old can housings that still run hot? The retrofit math has changed.
The old thinking comes from an era when LED retrofit kits were genuinely expensive. Early kits ran $150+ per fixture. That's changed. As of January 2025, LED retrofit downlight kits from major electrical distributors run roughly $25-60 each. The math moved. Most people haven't noticed.
Let me show you the numbers I ran before retrofitting our office's lobby downlights.
A standard 65W incandescent downlight that runs 12 hours per day draws about 285 kWh per year. A comparable 10W LED downlight fixture doing the same work draws about 44 kWh. The difference: roughly 240 kWh per fixture per year. According to the U.S. Department of Energy (energy.gov), LED lighting uses up to 75% less energy than incandescent lighting—and in a commercial space running 12 hours a day, that adds up fast.
At $0.15-0.20 per kWh for commercial rates, you're saving $36-48 per fixture annually. We have about 50 downlight fixtures in our building. That's $1,800-2,400 per year—every year—just by switching to LED downlights. (Prices as of January 2025; verify current rates with your utility and distributors.)
Cost to get there: roughly $25-60 per downlight LED retrofit kit, plus a couple hours of electrician time if you're doing multiple at once. Payback lands around 1.5 to 3 years. After that, it's savings. And LED modules last significantly longer than the bulbs they replace, so maintenance costs drop too. Not zero, but closer.
Look, I'm not saying every fixture in your building needs to be retrofitted tomorrow. But if you've got old can housings that run hot and you're paying commercial rates for electricity, the TCO answer is probably: plan the retrofit. Waiting until something fails means you're paying emergency-visit pricing plus losing efficiency in the meantime.
Situation 3: It's a Switch. It's "Easy." Call the Electrician Anyway.
The most common question I see online is: "Is it easy to change a wall light switch?" For a homeowner, mostly yes. Turn off the breaker, match three wires, test, done in fifteen minutes.
For a commercial building? Different story, unfortunately.
The switch itself costs $5-15. The licensed electrician's visit will run you $100-200 depending on your market. That feels ridiculous for a 15-minute job. I get it.
But here's the thing: commercial electrical work in most jurisdictions follows the National Electrical Code (NEC), and performing this work usually requires a licensed professional. That's not just bureaucracy. It's about insurance coverage, code compliance, and liability if something fails. A non-compliant install in a commercial space is a claim waiting to happen.
This is the reverse-validation story in my career. I had a well-meaning maintenance guy insist he could swap a dimmer in our conference room. Everyone told me to just schedule the electrician. I didn't listen. Long story short: the dimmer was wired incorrectly, and we found out at 9:30 AM in front of a client during a presentation.
In the dark. (Ugh, again.)
The "cheap" path—zero labor cost, $15 in parts—ended up costing us more than the $180 electrician would have. The fix, the rescheduled meeting, my time to coordinate it, the manager I had to apologize to. Total cost: way north of the electrician's invoice. The lesson stuck.
In commercial spaces, changing a wall light switch is one of those tasks where the cheapest-looking route has the highest TCO. This is exactly the kind of thing I tell anyone who asks "is it easy to change a wall light switch?"—it is easy. That's not the question. The question is: who's supposed to do it?
How to Figure Out Which Situation You're In
Three quick questions to run before making a decision:
How old is the fixture? Under 7 years and already LED? Buy the replacement part and move on. Over 10 years and burning 30W+ per fixture? Start building the retrofit case.
Is the part still available? If GE under cabinet lighting replacement parts are stocked and the fixture is healthy, repair. If you're hunting through third-party sellers for discontinued pieces, that's the universe telling you it's retirement time.
Is the problem the fixture or the control? Fixture issues are a repair-or-replace decision. Switch, dimmer, or control issues in a commercial area? Call the licensed electrician. You don't need to own this problem.
At the end of the day, good lighting procurement isn't about being cheap. It's about counting the full cost: unit price, energy use, labor, lifespan, and the risk of getting it wrong. Unit price, energy, labor, lifespan. In that order.
If you take one thing from this: don't let a low sticker price make the decision for you. Run the numbers, know your scenarios, and when in doubt, get a quote from a licensed pro. That's the difference between looking at a fixture and looking at a line item.