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Example System: Violet, Philips Hue and Sonos

Updated: Mar 11

Violet SmartSwitch Lite integrates with different products, but how does this look in practice? What are the requirements and how does everything come together? In this post, we break down the different elements, the topology and the wiring.



Violet SmartSwitch Lite is a touch screen light switch for your Philips Hue and Sonos systems. SmartSwitch Lite uses your existing wiring, although there is one minor alteration that needs to be made which, if you feel comfortable, you can do yourself or an electrician can do it for you. Please let us know and we can put you in touch with an installer if required.

Disclaimer: Electrics can be dangerous. Only work with them if you are sure you know what you are doing. If in doubt, ask an electrician. Violet Ultra Ltd. accepts no responsibility for any loss or damage resulting from any of our posts.

As a touch screen light switch, Violet SmartSwitch Lite directly places a single gang UK light switch, making it really versatile for all properties. There is a small wiring alteration to make in order to permanently energise the Hue bulbs and provide a neutral to the switch, but more on that in a minute.

A UK single gang light switch can be swapped for Violet SmartSwitch Lite.

Violet SmartSwitch Lite communicates over wifi to the rest of your network. That means it talks via your router or, if you have them, access points to the devices it is communicating with. It is important to note that any poor wifi connection could affect the performance of SmartSwitch Lite, so a decent wifi network is recommended from the start.



The basic system topology for Violet SmartSwitch Lite, Philips Hue and Sonos. Most communication is via your router or network so it is advisable that it is sturdy.

Philips Hue bulbs work differently to non-smart bulbs in that they can remain constantly powered, yet appear off. In fact, we want them to remain constantly powered so that Violet SmartSwitch (and your smartphone) can turn them on and off when needed without turning the power on first. This means that the original light switch is redundant. Additionally, we need to power SmartSwitch Lite, so this is where the small wiring change needs to be done. Effectively, we need to permanently energise the lighting circuit(s) and then send both live and neutral to each SmartSwitch. This is quite straightforward and is normally done by removing the first light in the circuit and switching a few wires around but if you don’t know what you’re doing, please speak with an electrician.



The small wiring change required to permanently energise Philips Hue bulbs and send a neutral back down to the SmartSwitch. Seek the help of an electrician if you don’t know what you’re doing.

To work with Violet, Philips Hue bulbs require a bridge. Each bridge can support up to around 50 bulbs, so one is usually enough, however you can add more than one if you need to. Each Hue Bridge needs to be connected via ethernet cable to your router or network. It’s easiest to follow Hue’s guidelines for this, including pairing bulbs with bridges, assigning them to rooms, naming them and creating any additional scenes. With Philips Hue integration, the scenes defined within Hue are what will show on the main screen of Violet SmartSwitch Lite.


Each SmartSwitch Lite can control one zone of Sonos that it is assigned to. SmartSwitch and sonos simply need to be on the same network and it doesn’t matter if you are using the smaller standalone Sonos players or the rack mounted Sonos Amps, it is all the same to Violet.

As you can see from this system example, Violet’s SmartSwitch Lite with Philips Hue and Sonos is straightforward to deploy for the convenience it then gives you.

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