LIFX 800 smart bulbs. Priced at £29 on the display but when they scanned through they came out at £12.91. I got these in Oldham Elk Mill store and picked up all they had. They aren't on the web site so it may be that Currys are clearing these. I have no idea if these are available nationwide. I did check the Rochdale branch as I pass it on the way home but they didn't have any.
I have set one up and it works well with the app and Google Home. Thought I would post in case anyone was looking for these.
Just to add these are the E27 fitting type. There was a price tag for bayonet type but none in stock.