Lifx colour 1000 dim light when should be off

I wonder if anybody could help me I have 6 x colour 1000 bulbs
At night they Seem to be on very dimmly if I switch them off with the wall switch they go out but the app says they are turned off the suppliers where I got them from Can not help me

contact support. Make sure your firmware is up to date.

All my bulbs are on v2.8
Is this the latest software update
If not how do I update
Many thanks

Please remember this isn’t a support site. Your question has been covered many times over and all the information you need is on the LIFX website.
Their support team is there to look after you so please contact them.

This could be the firmware or it could be the app, I have no idea what the latest firmware is.