I bought these for my daughters bunk beds. They are beautiful, very fine wired so there beds dont clumped down with wires. They wrapped easily around the wood and have stayed in palce. They use them for reading etc so not to disturb the other child and they are more than bright enough without lighting up the whole room. They have been on for a few hours at a time and they done heat up or anything. And so far they not tearing through batteries with is great.