Review (5/5): Works well. I had to upgrade from the Sally ...
Works well. I had to upgrade from the Sally Hanson LED light because that one wasn't large enough to fit all 5 fingers in at once. This one fits all 5 fingers and even has lights near wear the Pinky and thumb would fall so you get an even cure all the way around.
The lights come on when you put your hand in and then turns off when you take your hand out. And there's the option for a timer, 30, 60, and 90 seconds.