The CC lights are not Photons, they're a different design, but they're nice little lights. They advertise them as bags of 20 but they actually put in a few extra, so you typically get 22 or so, in case a few turn on in shipping or are bad for some other reason. I've ordered them a few times and have had a few of them fail but have never heard of a 50% failure rate til just now. Something weird must have happened. Anyway, those lights are a great buy. They do have the problem that they can turn on accidentally if banged around. When I mail one, I usually put a piece of scotch tape over the switch, to prevent that.