Best $20 device ever made

Fixed my lights!

[marie-elizabeth]

Haha — my tree looked like this too! Luckily mine just wasn’t plugged in all the way or something. But I’ll have to remember this!

[margonaut]

@wiesnerbeth we had checked all the connections. Usually if one light goes out the rest are supposed to remain lighted, but if there's an "internal fault" it'll take out a whole string. This thing was like magic!