Hey everyone, it’s Sam from the digital signage side of things. Lately, I’ve been getting so many questions from clients and even fellow signage folks about power usage. Like, “Sam, my screens are eating half my office electric bill” or “How the heck do I keep these things running without watching every penny?” And you know what? It’s not just a random problem—power consumption is one of the biggest headaches we deal with as signage suppliers, because let’s be real: no one wants to drop thousands on displays just to see their utility bill spike. Today, I’m breaking down exactly how to manage that without ditching performance or making your signs look like they’re powered by a flip phone. Digital Signage
First off, let’s get something straight: digital signage isn’t a one-size-fits-all thing. A 55-inch display in a coffee shop that’s only on during peak hours uses way less power than a giant 86-inch screen in a mall that’s lit up 12 hours a day. I see so many clients grab the biggest, brightest screen they can find without checking their actual needs, and then they’re shocked when the meter starts spinning. So step one? Do a quick power audit of your space. Don’t overcomplicate it—just think about when people are actually around. If you’ve got a gym that only runs signage during morning and evening workouts, you don’t need that screen cranked to 100% at 2 a.m. when the place is empty. I swear, that’s the simplest fix I can give anyone.
Now, let’s talk about display tech, because not all screens are created equal when it comes to power. A few years back, we were all pushing LCDs, and while they’re still solid, LED and OLED have come so far—especially the low-power variants. Wait, no, not all LEDs. There’s a difference between traditional LED backlit LCDs and direct-lit LEDs, and then there’s MicroLED, which is way more efficient for big outdoor signs. Let me put this in real terms: a 65-inch low-power LED display we stock uses about 80-100 watts max when it’s bright, compared to an older plasma screen that could hit 300 watts easy. That’s a 2/3 drop right there. I had a retail client switch from their old plasma signs to our low-power LEDs last year, and their electric bill for the signage alone went down $120 a month. Crazy, right? And if you’re doing outdoor stuff? Solar-powered signage is a game-changer now too. We’ve got solar kits that pair with our outdoor LED screens, so you’re not tied to the grid at all. Just make sure the panel size matches your screen’s power needs—don’t grab a 10W panel for a 50W screen, that’s a rookie mistake.
Next up: content settings. This is the part that everyone overlooks, but it’s huge. Your screen’s brightness doesn’t have to be maxed out all day. If your sign is in a dimly lit office hallway, 40% brightness is more than enough—cranking it to 100% just wastes power and strains the screen. For outdoor signs, you can use ambient light sensors (ALS) that adjust brightness automatically based on daylight. We add those sensors to almost all our commercial displays now, and clients love them. One restaurant we work with uses an ALS that kicks brightness up to 70% at noon when the sun’s blazing, and drops it to 25% at night when it’s dark. No more guesswork, and power use drops another 15-20% just like that. Also, don’t use static images or overly bright content 24/7. Loop shorter content blocks instead of long videos—wait, no, not too short, because screens hate being reset too often, but 10-15 second loops work fine. And avoid full-white screens at all costs; white uses way more power than gray or black. I’ve had clients test this: running a full-white slide vs. a gray one on the same screen, and the white used 30% more power. That’s such a tiny change but makes a big difference over a month.
Then there’s scheduling and power management settings. Almost every commercial digital sign has built-in scheduling tools, but so many people leave them disabled. Why would you have a sign turn on at 7 a.m. if your place doesn’t open until 9? Or leave it on all night when you close at 5? It’s like leaving your TV on when you leave the house. Our signage players (the little box that runs the content) have super easy scheduling—you just plug in times when the screen should be on, off, or in sleep mode. Sleep mode isn’t off, but it uses like 5 watts instead of 80, so it’s perfect for overnight. A college campus we work with has their dorm signage in sleep mode from midnight to 6 a.m., and they save over $500 a semester on power. Even better: some screens have wake-on-LAN features, so they only power on right when you need to show content, and go back to sleep when done. No more idle power drain.
Wait, let’s not forget about hardware add-ons that make a difference. Things like energy-efficient media players. A lot of clients use old PCs or generic players that draw way more power than they need. We use ARM-based players for most of our setups—they’re way lower power, like 5-10 watts, vs. a PC that can hit 50 watts easy. Also, power supply units (PSUs) matter. Don’t skimp on cheap PSUs; get ones that are 80 PLUS certified. Those are way more efficient at converting wall power to power the screen, so less energy is lost as heat. Heat is another big one—if your screen is in a stuffy room or outside in direct sun, it has to work harder to cool itself down, which uses more power. So make sure your signage has proper ventilation. For indoor signs, don’t tuck them into a closed cabinet with no air flow. For outdoor signs, get ones with IP-rated enclosures that handle heat better. We tested a sign in a warehouse that was tucked in a closed shelf—its power use was 25% higher than a sign with open air flow just 2 feet away. That’s crazy, but true.
Now, what about when you have multiple signs in a setup? Like a retail store with 10 screens. Don’t run them all at full power if you don’t need to. Use a central management system (CMS) that lets you control all screens from one place, adjust their brightness, schedule them, and even turn off any that aren’t being used. We use a CMS for our clients with large sign networks, and it cuts their total power use by 20-25% across all signs. One grocery store had a bunch of end-cap signs that were only used for promotions—they turned those off when there was no promo running, and saved $300 a month. Also, if you’re upgrading old signs, phase it out instead of replacing all at once. Start with the signs that are oldest and highest power, swap them for our low-power models, and you’ll see savings right away. Don’t just throw away good screens—reuse them if they’re still working, just adjust their settings to use less power.
I should also mention common myths that I hear all the time. Like, “bigger screen means more power.” Well, not always. A 55-inch MicroLED uses less power than a 49-inch old LCD because MicroLED tech is way more efficient. Another myth: “turning your screen on and off all the time is bad for it.” Modern screens are built for that—our displays can handle thousands of on/off cycles without issues, way more than you’d ever use in a year. So don’t be afraid to power them down when they’re not needed. And “brighter is better for visibility” — not if it’s not needed. As we talked about, ambient light sensors fix that, so you don’t have to guess.
Let’s tie this all together with a real example. Last quarter, we worked with a small café in downtown Austin. They had two 50-inch LCD signs that were using their back office’s extra power, and their electric bill was $180 extra a month just for the signs. We did three things: swapped the old LCDs for our low-power 50-inch LED models ($99/month extra, but worth it), added ambient light sensors, and set up a schedule that turned the signs off when the café was closed (10 p.m. to 7 a.m.). Their power bill for the signs dropped to $45 a month. That’s a $135 savings—more than the extra cost of the new signs. In three months, they recouped the cost of the hardware, and now they’re saving money every month. And their signs look just as good, if not better, than before. That’s the kind of win we love to deliver.
If you’re still confused about where to start, here’s my quick checklist: 1. Do a space audit—when is your sign actually seen? 2. Upgrade to low-power display tech, don’t buy the biggest/brightest out of habit. 3. Add ambient light sensors and scheduling—non-negotiables. 4. Use efficient players and PSUs, no cheap stuff. 5. Use a central system for multiple signs, and turn off unused ones. 6. Ditch old myths about powering screens on/off or brightness.
At the end of the day, managing power consumption for digital signage isn’t about making your signs look worse or limiting their use. It’s about being smart with the tech that’s already there, and choosing hardware that fits your actual needs, not some random spec sheet. We’ve helped hundreds of clients cut their signage power costs without sacrificing quality, and that’s what we care about most. If you’re tired of high electric bills from your signs, or you’re setting up new signage and want to avoid that headache altogether, reach out to us to chat through your needs. We can walk through exactly what setup would work for your space, show you the numbers, and find a way to save you money without skipping on performance. You don’t have to figure this out alone—we’ve got the tips, the tech, and the real-world experience to help.
Outdoor LED Display References
- Digital Signage Federation (DSF). (2022). Energy Efficiency Best Practices for Commercial Digital Signage. Retrieved from industry reports on DSF official publications
- Display Supply Chain Consultants (DSCC). (2021). Low-Power Display Technology Market Trends and Efficiency Benchmarks. Retrieved from DSCC market analysis reports
- Environmental Protection Agency (EPA). (2023). Energy Star Guidelines for Commercial Displays and Digital Signage. Retrieved from EPA Energy Star product specifications databases
- Digital Signage Today. (2022). “5 Easy Ways to Cut Signage Power Costs” – Industry Feature Article. Retrieved from Digital Signage Today online archives
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