Question: Controlling lights from another network

[JaiNarayanan]

Can I control my wiz lights that are on my home network while connected to another network?

[sbidy]

It depends on - the Wiz integration works with UDP and UDP-Boardcast. I that case most of the network configurations do not allow that broadcast traffic can travel over a layer 3 boundaries (different subnets). You need to ensure that this is possible and routed.
But keep in mind that broadcast traffic can slow down your network easily and provides heavy unneeded traffic.

[JaiNarayanan]

Thanks for the response, that makes sense! So if I wanted to call my light from an api hosted on the cloud that probably wouldn't work then right?

[TrekkerUK]

If you only want to do something simple (e.g. toggle a specific light, set to a preset colour, select a scene), this could be done through IFTTT.

I find the site horrible to use, but it is free and works. Using the Wiz app you can integrate with IFTTT, then on the site create an applet triggered by a webhook, then add a Wiz action. Then your cloud API just needs to hit the webhook URL and the light will change.

The main issue is (as far as I can tell) everything (room, light, colour) has to be preset so your API would not be able to e.g. 'set light x to colour y'.