I was standing in the parking lot of a new retail strip, staring at a bank of 24 wall packs that were doing something they really weren't supposed to do. Half were flickering. Three were completely dark. The rest were cycling on and off like they were trying to send Morse code.
The client was standing next to me, arms crossed, not saying a word. That silence was way worse than if he'd yelled at me. He'd paid for a working lighting system. I'd given him a problem.
This was September 2022, and I'd just learned a pretty expensive lesson about what a smart bulb actually is — and why most of them don't belong in commercial outdoor applications.
The Setup: Why I Thought I Was Being Smart
Earlier that year, I'd picked up a contract to handle the lighting for a small commercial development. Four buildings, parking lot, walkways. Nothing huge, but a solid project for my team. The client wanted something modern — energy efficient, controllable, maybe with some scheduling and dimming. They'd heard about smart lighting and wanted in.
My first instinct was good. I spec'd out Lithonia Lighting fixtures for the core install. CFPB high bays for the warehouse units, wall packs for the exterior, and exit signs for code compliance. Lithonia is a no-brainer for commercial work. Reliable, well-built, backed by Acuity Brands. The fixtures showed up on time, looked solid, and installed clean. The owner liked what he saw.
Then I made a mistake. In my experience, a lot of people hear "smart lighting" and immediately think of those color-changing bulbs you see on the shelf at big-box stores. The client had mentioned wanting control from his phone. I started researching options.
And that's when I went down the wrong path.
The Mistake: Retrofit Smart Bulbs on an Outdoor Install
I'd been on the fence about what kind of control system to use. I went back and forth between a proper system (like Lithonia's Zigbee-based controls) and consumer smart bulbs for about a week. The consumer bulbs were cheaper. Way cheaper. A fraction of the cost per fixture. They claimed to be app-controllable, schedulable, dimmable — everything the client wanted.
I knew on some level that consumer smart bulbs weren't designed for outdoor commercial use. But I told myself it would work. I'd find weather-rated housings. I'd seal the connections. I'd make it work.
So I ordered 48 screw-base smart bulbs — the kind you pair to a Wi-Fi network with an app. Installed them in the wall packs and some downlights. Worked great for about two weeks.
Then the problems started.
The Disaster: What Went Wrong
First, connectivity was a nightmare. Wi-Fi smart bulbs don't love metal housings (which is what outdoor wall packs are made of). Several bulbs couldn't maintain a stable connection to the network. Some would drop off entirely and need to be re-paired — a process that meant taking the fixture apart.
Second, heat and weather. Outdoor-rated or not, those bulbs were never designed for continuous use in enclosed fixtures. The electronics inside didn't have proper thermal management. I started getting failures within three months.
Third, the app. The client wanted his facilities guy to manage the lights. The smart bulb app required an account, firmware updates, and occasional troubleshooting. It was a consumer product trying to do a commercial job. The facilities guy hated it. The client called me, frustrated.
By that September evening in the parking lot, we had 24 non-functioning wall packs out of 48. That error cost me about $890 in replacement parts (the bulbs themselves weren't cheap), plus a week of labor to swap them out. Plus the embarrassment. Plus the damaged relationship.
I'd tried to save maybe $500 upfront. In the end, it cost me way more.
The Fix: Back to Purpose-Built Commercial Lighting
So glad I had the original Lithonia fixtures still in place under those failed smart bulbs. We removed all the consumer bulbs, tossed them in the e-waste bin, and installed proper Lithonia Lighting outdoor fixtures with integrated controls. Specifically, I switched to their line that supports Zigbee-based controls — the same standard that Acuity Brands has been building into their commercial products for years.
The difference was night and day, literally. The Zigbee network was rock solid. No dropped connections. No re-pairing. The scheduling was handled at the lighting controller level, not through a flaky app on someone's phone. The facilities guy was happy. The client stopped calling me.
What I learned: a smart bulb is not the same thing as a smart lighting system. A smart bulb is a light source with a radio chip and a software layer. A smart lighting system is the complete package — fixtures designed to handle it, controls that actually work at scale, and a reliable communication protocol (like Zigbee) that doesn't depend on your Wi-Fi router's signal strength.
The Lesson: What Is a Smart Bulb, Really?
When people ask me now "what is a smart bulb", I give them an honest answer. A smart bulb is a consumer product for single-room use. It's fine for your living room lamp. It's fine for a dorm room. It's not fine for a commercial parking lot. Commercial smart lighting requires purpose-built fixtures, robust controls, and industrial reliability.
For my jobs now, I stick with what works. Lithonia Lighting for the fixtures. Zigbee for the controls (check out the Zigbee website for the protocol standard if you want the technical details). And a proper lighting control system — not a Wi-Fi bulb and an app. I still use smart bulbs at home. But on commercial projects? Never again.
That parking lot disaster taught me to look at total cost, not just upfront price. The consumer bulbs were cheap to buy but expensive to own. The proper commercial solution cost more upfront but saved money — and sanity — in the long run.
These days, when a client asks about smart lighting, I ask them what they actually want. If they want phone control for a single room, maybe a smart bulb works. If they want a reliable commercial lighting system that their facilities staff can manage without headaches — I spec Lithonia with Zigbee controls. Every time.
Bottom line: Don't learn this lesson the way I did. If you're doing outdoor or commercial lighting, buy commercial-grade fixtures. Lithonia Lighting outdoor products are built for it. Don't trust a $12 screw-base bulb to do a job that requires real engineering. Your budget — and your relationship with contractors — will thank you.