I have these on the boat now. The wand like one has 30 LED's and is made by Craftsman and is rechargeable.
The box shaped one has 25 LED's, I actually got it at the little hardware store in Avalon at Catalina. I really love this one, it was less than 7 bucks, at Avalon! That's a pretty good hardware store btw.
I also have one like you show above Sven that I actually left in the Ice Box over night recently. It got wet and froze, but only one LED went out.