Security Cameras Need Two Things: Power and a Network

After years of walking properties with homeowners and builders, we have found the whole conversation about security cameras gets simpler when you strip it back to this: a camera needs two things, power and a network. That is it. Every product on the shelf, every install we quote, every argument about wired versus wireless, comes down to how those two needs get met.

Once you see it that way, the marketing gets a lot easier to read. So here is the honest version — every way to get power and a network to a camera, what each one costs you, and which combinations we actually install on Utah homes and businesses.

First, a myth worth killing: “wireless” cameras are not wireless

When a box says wireless, it almost always means the data is wireless. The camera still needs power, and power usually means a wire. The only genuinely wire-free cameras are battery powered, and a battery is a thing you have to maintain.

So when someone says they want wireless cameras to avoid running cable, the real question is which of the two requirements they are trying to solve — and whether solving it wirelessly is worth what it costs in reliability.

The five ways to power a camera

1. PoE — one cable does both

Power over Ethernet sends power and data down a single Cat6 cable, up to about 300 feet from the switch. One cable, one termination, nothing to plug in at the camera end. If a cable can be pulled, this is what we install.

Why we prefer it: no batteries, no Wi-Fi contention, no separate power supply at the eave, and if a camera drops off you have one cable and one switch port to check. It is also the only option that scales cleanly — a twenty-camera building on PoE behaves; twenty cameras on Wi-Fi does not.

The cost: somebody has to pull the cable. In a finished house that means fishing walls and soffits. In a house under construction it is trivial, which is exactly why we push builders to rough in camera locations before drywall.

2. AC from an existing fixture — the floodlight camera trick

Floodlight cameras swap out an exterior light fixture and borrow the 120V that is already there. No new wire, no battery, and you keep the light. For a garage, a back door or a side yard that already has a fixture, it is the fastest good answer we have.

These are also a natural fit alongside exterior lighting work, since you are already in the fixture.

3. Low-voltage DC — hardwired power, wireless data

A 12V or 24V DC run from a transformer powers the camera while the video rides your Wi-Fi. It is the compromise position: you have solved power properly, and you are only gambling on the network. Common where the cable path to the camera is easy but the path back to the rack is not.

4. Battery

No wires at all. Genuinely useful for rentals, for a spot you cannot get power to, or for a camera you need up this afternoon.

What you trade: battery cameras sleep to conserve power, so they wake on motion — and waking takes a moment. You frequently get the middle of an event rather than the start of it. Cold weather makes it worse; a battery that lasts four months in September will not last four months in a Utah January. And every battery is a recurring chore, multiplied by however many cameras you own.

5. Solar

A small panel that keeps a battery camera topped up. On the right wall this genuinely works and we install them — the right wall meaning real, direct, southern exposure for a good part of the day.

The four ways to get a camera on a network

1. Ethernet

A wire back to a switch. Nothing else is as reliable, and nothing else is as boring — which, for infrastructure, is the highest compliment available. It is also the only option where twenty cameras recording 4K does not become a conversation about bandwidth. If you are already thinking about coverage, it is worth reading how we approach the network the whole property runs on.

2. Wi-Fi

Convenient, and fine for a few cameras on a good network. The failure modes are worth knowing: cameras sit outside, and the far side of a stucco or brick wall is a hostile place for a signal. Video is a constant upstream load, so a handful of Wi-Fi cameras can make the rest of the house feel slow. And a Wi-Fi camera is only as reliable as the access point nearest to it, which is often the one in the middle of the house pointing the wrong way.

If you are going to run cameras over Wi-Fi, put a real access point near them rather than hoping. That is usually a smaller job than people expect.

3. Cellular

An LTE modem at the property, or built into the camera. This is the answer for places with no internet at all — land you are about to build on, a cabin, a well house, a job site, a gate half a mile from the house.

The cost: a data plan, and a real reason to think about how much video you push. Cellular plus solar is the standard construction-site kit, and it is genuinely the only thing that works out there.

4. A wireless bridge, for outbuildings

A point-to-point radio link between two buildings — house to shop, house to barn — carrying a full network across the gap. Far better than stretching Wi-Fi and hoping, and much cheaper than trenching a conduit across a pasture. Once the bridge is up, the outbuilding gets PoE cameras like anywhere else.

The combinations you will actually be offered

What we recommend, and when we don’t

Pull cable where you can. PoE is cheaper over five years than any battery system, it records continuously instead of waking up, and it is the only approach that stays sane past a handful of cameras. On a new build it costs almost nothing to do right.

We don’t recommend it everywhere, though. If you are renting, if the camera is going somewhere you may move it, or if the wall in question would mean opening up finished ceilings for one view, battery or a floodlight camera is the sensible answer and we will tell you so.

Most properties end up mixed: PoE on the house where the cable path is clean, a floodlight camera on the detached garage, something on solar and cellular watching the gate. That is a perfectly good design, not a compromise.

The equipment side

We install and support UniFi for most residential and light commercial work, Alarm.com where cameras need to sit alongside a monitored alarm, and Verkada for commercial sites that need cloud management and AI search across many buildings. All three do PoE properly; they differ in how they store video and what the ongoing costs look like.

If you would rather see the hardware, our camera and video equipment is the same gear we install, and there is more detail on our camera systems page.

Five questions worth asking before you buy

• Is it recording all the time, or only when it wakes up? This is the real difference between a wired camera and a battery one.
• Where does the video live, and what does that cost per month? Local storage, cloud, or both.
• If it is on Wi-Fi, what is it connecting to, and where is that access point?
• If it is on a switched fixture, who might turn the switch off?
• What happens in a power cut? A camera on a UPS keeps working; a camera on a switched outlet does not.

Getting it right for your property

Camera placement matters more than camera specs — a 4K camera pointed at the wrong corner is worse than a 2K camera watching the approach. We walk the property, mark the locations, and tell you which of these power and network options actually fit each one.

If you are building, get us the plans and we will mark up camera locations before anyone hangs drywall. If your house is finished, we will find the paths that exist and be straight with you about the ones that don’t.

Commercial property? The power and network options are the same, the scale is not — see structured cabling and business camera systems in Utah.

Get in touch or call (928) THE-PROS and we will come look at it.