I don’t know if it will help or answer any questions , but here are the links to both my reviews on the A3 and the A3S.
Both reviews have Lumens , Amperage and Runtime Test charts in them as well as the video with all the still photos , beamshots and outdoor live footage.
A3 here……Review Wowtac A3 / Side Switch--Zoomable
A3S here……… Review WowTac A3S (Zoomable 18650)
You can still get the A3S from the Wowtac site for $29.99 if it is not listed on Amazon also.