Smart bulbs and switches: where to start

Smart bulb or smart switch — which is the easier start

A smart bulb screws into an existing fitting and connects to your phone over Wi-Fi or a hub. There is no wiring involved, so anyone can fit one in a couple of minutes. The catch is that the wall switch controlling it has to stay on at all times, otherwise the bulb loses power and the app cannot reach it — a habit that takes some getting used to in a household where switching lights off by hand is automatic.

A smart switch replaces the physical unit on the wall. It controls whatever is wired to it, works with ordinary bulbs, and does not depend on anyone leaving a switch in a particular position. The trade-off is that it is an electrical job: the switch sits inside a wall box connected to live wiring, and fitting one means turning off the circuit and working inside it.

For a first project, most people are better off with one or two smart bulbs in a room they actually want to control — a bedroom lamp, a hallway light. It costs little, takes no time, and tells you within a week whether smart lighting is something you will actually use before you spend more.

Older flats — does the existing wiring even support it

Many smart switches need a neutral wire at the switch box, not just live and switched-live. This is standard in newer builds but often missing in older Tallinn buildings, particularly Soviet-era panel flats and pre-war wooden houses in Kalamaja or Nõmme where the wiring was never designed with this in mind. Opening the switch plate is the only reliable way to find out what is actually behind it — guessing from the building's age is not enough.

If there is no neutral at the switch, a smart bulb is the practical option, since it draws power through the fitting itself and does not care what is behind the wall switch. Some switch manufacturers sell neutral-free versions, but these are fussier about the type of bulb they work with and are not always sold or supported locally.

Rewiring to add a neutral wire is possible but is a proper electrical job, not a weekend fix, and worth doing only if you are already planning wider work in the room.

Do you actually need a hub

Some smart bulbs and switches connect straight to your home Wi-Fi and are controlled entirely from an app, no extra hardware required. This is the simplest setup and is fine for a handful of devices in one flat.

A hub becomes useful once you have several devices from different brands, want them to work together — a motion sensor switching on a light, for instance — or want reliable local control that does not depend on your internet connection being up. Hubs typically talk to devices over Zigbee or a similar low-power radio protocol rather than Wi-Fi, which also tends to be more stable with many devices on one network.

For a beginner with one or two bulbs, a hub is an unnecessary expense and another thing to configure. It earns its place once you are expanding beyond simple on-and-off lighting.

What to buy first on a limited budget

The cheapest way into smart lighting is a bulb or a plug-in socket, both of which you fit yourself with no tools and no electrician. Spend the first month living with it before buying anything else — it tells you whether you want scheduling, remote access, or voice control, or whether the novelty wears off.

• One or two smart bulbs for a room where you actually want scheduling or remote control — not the whole flat
• A bulb model with a stable, well-supported app rather than the cheapest option available
• A plug-in smart socket instead of a bulb, if you want to control a lamp or an existing fitting without touching anything electrical
• Nothing else — skip the hub, skip extra sensors, skip full-flat kits until you know you will use what you have
• A note of which rooms and switches have a neutral wire, useful before any later switch upgrade

When to call an electrician rather than do it yourself

Fitting a smart switch means working inside a wall box with live wiring, checking whether a neutral is present, and wiring the unit correctly — this is not a job to learn on your own consumer unit. If you want smart switches rather than bulbs, this is electrical work and should be done by a qualified electrician.

The same applies if you are planning several rooms at once, want switches and sensors working together, or are not sure what is behind your existing switch plates. A short site visit settles what your wiring can support before you buy anything that will not fit.

We do smart home installation from 90 € per job, and separate electrical work — including checking or adding wiring for smart switches — from 49 € per hour. We do not touch load-bearing walls or gas work; neither is relevant here, but if a job turns out to need either, we say so and point you to the right specialist.