Second the Soshine 14500.
Bought 4 on that review. use in 3 different torches.
Triple the output of AA. with lot’s of life.
Wife had one in a cheapie AA . Left on desk for 20 mins face down NO scallops round rim.

Cooked her hand when she picked it up.
Soshine OUT. AA back in. For that one hey.
Apart from that. My single and a double are fine.