There probably still a lot of confusion regarding the rules to be used batteries / accumulators.:
It could be normal AA batteries / accumulators with 1.5V / 1.2V used or Li-ion batteries of the type 14500. With the former, the lamp lights a little darker, with the latter corresponding to brighter! The full brightness is achieved only with the Li-ion batteries. 300 lumens while I would even watch almost as realistic.
