I bought a set this morning, and they're pretty much CRAP! The set of 5, includes 5 rubber armored 5mm led lights with batteries. The batteries are 2xAAA per light, and fit inside a plastic tube. The light may be designed for AA batteries, but I don't have time right now to try it. The light is hopelessly dim. Although it might be good for an emergency storage pack, or to read by, I don't recommend them. The other light combinations are a 5 pack-LED keychain squeeze type, LED keychain, 2 single AAA, and 1 double AAA KRYPTON. Another package include a couple of larger aluminum KRYPTON lights with an LED headlight.
UPDATE:
OK. I'm back home now after working all day, and had a bit of time to play around with the lights in the dark. They aren't as dim as I earlier thought. They're about as a bright as a Sonic with a really non-uniform and ringy beam, but still useful if you need a light. The plastic sleeve insert for the AAA batteries falls right out, and a pair of AA batteries fits right in. Due to the rubber armoring, they have a sure grip and would make a welcome addition to the glove box, trunk, tool or tackle box. However, there are many cheap lights that do a better job of illuminating.