This on/off switch is not marked and you have to try and figure out what is the on position, but you have to first let the cells charge. That was a huge pain. There were no directions in the box so thats a huge fail on their part. Once it was up and running it did a decent job lasting about 8ish hours. It doesn't last through out the night, but its still winter and it'll do the job once spring and summer roll around.
Rating: [4 of 5 Stars!]