I was struggling to find good mains-powered lighting options before I came across the Teardrop lights from Sparkle Lighting. We installed these on our 5-year old daughter's new house bed to give it some atmosphere. We unveiled the whole setup to her in one go (bed and lights together) and her response was "It's so magical!" I think a good 70% of that sentiment was towards the lighting. The only slight negative thing is that they are quite pricey, especially when we were stung by customs for another €20 - but I can't blame the store for that.
I also loved dealing with a small, family run business. I really appreciated that the owner reached out to check if they'd arrived safely. Top class customer service!