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—Comparing the options

Smart switches or smart bulbs

Smart bulbs need no wiring changes. Smart switches keep wall switches working. Each has a catch.

Smart bulbs screw into existing fittings and connect to an app or hub. They allow colour and dimming control without wiring work, which suits rentals and quick upgrades. The catch is that the wall switch must stay on; if someone switches it off, the bulb cannot be controlled.

Comparison guides weigh two electrical options against each other and note where each one fits best.

Smart switches replace wall switches and control whatever lamps are on the circuit. Wall switches keep working normally, and all lamps on the circuit are controlled together. They often need a neutral at the switch and suitable lamp loads.

01In short

The points that matter most

  • Bulbs: no wiring

    Easy, but wall switches must stay on.

  • Switches: whole circuit

    Wall switches keep working.

  • Wiring matters

    Switches may need a neutral.

  • Reliability

    Switches control the circuit directly, so lights still work when the network is down.

02Detail

Choosing

  • Rentals

    Smart bulbs avoid wiring changes.

  • Many lamps per room

    Smart switches control them together.

  • Colour control

    Smart bulbs offer colour changes.

  • Household habits

    If people use wall switches, smart switches suit.

03Checklist

Before choosing

  • Count lamps per room

    Many downlights favour switches.

  • Check wiring

    Neutral at switches.

  • Consider the household

    Who uses what.

  • Check Wi-Fi coverage

    Both depend on a reliable network for app control.

04Questions

Questions people ask

Can smart bulbs and switches be combined?
It can cause conflicts; usually choose one approach per circuit.
Do smart bulbs work with dimmers?
Generally not; dimmers can damage them.
Which is cheaper?
It depends on lamp count; switches control many lamps at once.
Do they need a hub?
Some systems do; others use Wi-Fi.
What happens in a power cut?
Most smart bulbs and switches return to a default state; check how your chosen product behaves.

05Related

Related guides

This guide sits under installation. All topics are on the guides page.

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