What do they look like? Do you use special connectors to string fairy-light festoons together or standard household plugs?
I'm interested particularly in the British light-sets. Are they also series-string like the USA-type midget sets or parallel with a power transformer? I'm trying to imagine tiny 24-AWG wires going into a huge white plastic glob of a plug...or is there something tidier (like a shaver plug) and connected to the mains via an adapter?
Any pictures of what you use?
