Got a Caldwell Chronograph for Christmas and the battery pack to run the lights was no good. So I filed a claim to get a replacement battery pack. They sent me the whole light kit, which I don't need except for the battery pack. So the deal is, if you want a light kit for your Caldwell chronograph, you can have this one, it just doesn't have a battery pack. It does have the AC adapter, and the light works just fine with the AC adapter. Free to good home!