@Yokushka Please don't apologise - I wasn't offended by your comment about home insurance! Quite the contrary, I wouldn't have thought about it had you not mentioned it! And thank you also for your...

@Yokushka - thank you for the suggestion! I do indeed have property insurance, although I wonder if an electrician would actually cost more than the 'excess' that I have to pay for each claim?!...

So, I have two ceiling lights in my living room - both connected via the same switch. Last week, I installed one Smart Bulb (the LB110 model) that I had had in my cupboard for many months! I was...