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Behind The Switch

Guides

How to choose Rako lighting control or Shelly smart relays, which hub or keypad to order, and which device fits the circuit.

Shelly · 2 October 2026

Which Shelly energy monitor for a UK home?

Choose a Shelly energy monitor by the number of phases, where it can be fitted, and whether it must switch a contactor.

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Rako · 1 October 2026

Rako RK-EOS-6 vs WK-EOS-6: wireless or wired six-button keypad?

Wireless systems take the battery RK-EOS-6; wired CAT5 systems take the WK-EOS-6. Each needs its own cover plate kit.

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Rako and Shelly · 1 October 2026

Rako or Shelly: which do I need in a UK home?

Rako gives dedicated keypads and designed lighting scenes; Shelly adds smart control behind your existing switches. This guide helps you choose, or use both.

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Rako · 1 October 2026

Rako RMT-500 vs RML-500: trailing-edge or leading-edge for UK lights?

The RMT-500 is trailing-edge, for mains dimmable LED. The RML-500 is leading-edge, for tungsten, halogen and wire-wound loads. Match the module to the lights.

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Rako · 1 October 2026

Rako curtains and blinds: control them from the same keypad as the lights

Control curtains and blinds from the same Rako keypads as your lights. Compare RACUB, RACUB2L, RACUB24DC, DIN-4C and WM-CUB by motor type.

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Shelly · 1 October 2026

Does Shelly work with Home Assistant in the UK?

Yes, Shelly works with Home Assistant. Home Assistant finds Shelly devices on your local network and controls them without the cloud.

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Rako · 1 October 2026

Rako RK-HUB vs WK-HUB: which hub for a wireless or wired UK system?

A wireless Rako system takes the RK-HUB. A wired or hybrid system takes the WK-HUB. This guide explains what each hub does, when you need one, and the mix-ups to avoid before you order.

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Shelly · 28 September 2026

Shelly 1L vs Mini: no-neutral UK light switches

Many UK light switches have no neutral in the back box, which rules out most Minis. This guide explains when a Mini still fits, when the Shelly 1L Gen3 is the right relay, where its Bypass goes, and when a dimmer or plug suits better.

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Shelly · 28 September 2026

Shelly Mini vs Pro vs BLU vs Wave: which to buy in the UK

Shelly names can look like a list of codes. This guide sorts them by where the device lives and how it talks: Mini behind the switch, Pro on the DIN rail, BLU on Bluetooth, and Wave on Z-Wave, so you can pick the right body for a UK home.

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Shelly · 28 September 2026

How to fit a Shelly Mini behind a UK light switch

A Shelly Mini sits in the back box behind a UK light switch, so the plate you already have stays on the wall. This guide explains which Mini suits a lighting circuit, what the box needs, how fitting works, and when a Pro, plug or sensor fits better.

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