Overall these models are in a nice used condition .selection Of sumo slammers and other models from the tv series also a clip on light with ben ten I can't actually find one of these online , I can't work out how to switch it on But I presume you've either got a change the battery Or there is a small piece of cardboard in the battery component, potentially, if that's taken out, it should work.But in a physically good condition , but I can't guarantee that this will work I don't have a screwdriver , small enough two open it up Nevertheless, highly collectable, quite a rare item I'm sure as google lens can't find it
eBay