Legrand Request Project Review

Why I Stopped Buying the Cheapest Lighting Controls (and Why You Should, Too)

I think the lowest-cost lighting control almost always costs you more in the long run

When I took over purchasing for our office in 2020, I made the same mistake a lot of people make: I bought the cheapest smart dimmer I could find. Saved about $15 per unit compared to the Legrand radiant dimmer our electrician recommended. Felt smart at the time.

Fast forward two months. Three of those cheap dimmers started buzzing. One literally stopped pairing with our Zigbee gateway. I spent four hours troubleshooting, called the vendor, got a runaround about a “warranty” that required me to mail the units back at my own cost. Meanwhile, my VP asked why the conference room lights weren't working before a client visit. (Ugh.)

I've now processed roughly 600 orders across 12 vendors since 2020. And my experience has consistently shown that the cheapest option in smart lighting controls rarely saves you money once you factor in everything.

Three reasons the low-cost choice is a trap

Let me break down why I've shifted my entire approach—and why we now standardize on Legrand's smart lighting ecosystem for most of our projects.

1. Hidden costs kill your budget

The first thing people look at is unit price. But I've learned the hard way that the real cost includes much more. Figure it this way: you're paying for the device, sure, but also for the hour you spend figuring out why it won't join your Zigbee network, the technician call-back when a sensor doesn't work, the admin time processing a return, and the lost productivity when lights don't turn on.

I did a rough calculation last year on a project where we installed 40 occupancy sensors across two floors. We tested a budget brand for half of them. The budget sensors saved us about $500 upfront (which, honestly, felt significant at the time). But then: three sensors failed within six months, two didn't cover the room properly, and I spent about $700 on electrician callbacks and replacements. Net loss: about $200, plus the headache. With the Legrand occupancy sensors on the other half? Zero issues. We installed them, they paired seamlessly with our IoT gateway, and they've been running for over a year now without a single service ticket.

2. Compatibility is not a given—and it's expensive to fix

In 2022, we did a small retrofit in our annex. I bought some cheap Zigbee-enabled switches from an online marketplace. They paired with our network—sort of. But they would occasionally drop off the mesh, requiring a factory reset. The reset process wasn't even documented properly. (Surprise, surprise.)

This is where Legrand's Zigbee investments matter more than people think. Because Legrand is part of the Zigbee Alliance and builds to the RF4CE standard, their devices just... work within a Zigbee mesh. They don't drop off. They don't fight with other devices. I've got Legrand switches, a humidity sensor in the server room, and a few dimmers all on the same network—and they're rock solid. That reliability is worth the premium.

3. Time spent on junk is a hidden budget killer

I report to both operations and finance. Operations cares about how much of my time (and the facilities team's time) goes into managing lighting. Finance cares about the invoice amount. Neither of them is happy when I'm spending hours troubleshooting a cheap product.

Here's a concrete example: in Q3 2024, I consolidated our backup inventory across three locations. We had 14 different part numbers for smart switches alone, some from brands I couldn't even name. Half the stock was effectively unusable because the supporting gateways were discontinued. I had to write off about $1,200 in inventory. If we'd standardized from the start on a single ecosystem—like Legrand's adorne or radiant series—I'd have maybe 5 part numbers and zero write-offs.

But wait—what about budget pressure?

I know what you're thinking. Not everyone has the luxury of specifying premium controls. And I get it. In 2023, our facilities budget was cut 15%. I had to make choices.

My approach: I don't buy the cheapest, but I don't always buy the top-shelf either. What I do is map out the total cost. For a simple install (like a single room or a low-traffic area), a budget option might be fine. But for high-use spaces—conference rooms, open offices, hallways—I go with Legrand. Because the cost of a failure in a high-use space is way higher than the savings on the unit price.

And honestly, Legrand's lineup has options that work for tighter budgets. Their radiant collection is not the most expensive, but it's built on the same Zigbee platform as their premium lines. That means you get the reliability without blowing the budget. That's the sweet spot.

My bottom line

I've been burned enough to know that the cheapest lighting control is rarely the most cost-effective choice. When you factor in product failures, compatibility hassles, and your own time, Legrand's smart ecosystem often saves you money—not costs more. Obviously, you should evaluate your own needs. But in my experience managing lighting purchases for about $80K annually across 8 vendors, I've stopped buying cheap and never regretted it.

Also, if you're cutting an LED strip to fit a custom length and wondering where to cut it—check the markings. Most strips are labeled every few inches. Legrand's undercabinet strips are clearly marked, which, honestly, saved me a lot of guesswork. (And a potential fried strip.)

Why this matters

Use this note to clarify specification logic before compatibility questions spread across too many conversations.