There Dereelight C2H delivers 1A to the emitter and it draws around 1.4A from the battery (4v IMR16340). So I have no idea why Regalight claims 500mA from the battery will deliver 1A to the emitter.
My Liteflux LF5XT which also runs off a 14500 has more total output than my Regalight EDC.
Just incase Regalight edits their sales thread, here is their current sales pitch:
"Brightness and Runtime:
AA battery
Max output 180 Lumens for about 65 minutes
Min output 3 Lumens for about 75 hours
LI-ION battery
Max output 200 Lumens for about 90minutes
Min output 5 Lumens for about 100 hours
A pocket tactical flashlight,which only has little more 500MA input can ensure 1A output; A pocket tactical flashlight,the brightness doesn't reduce when the electricity reduces; A pocket tactical flashlight,with the Hawk snipe lamp bezel,which can transcend many big long shot flashlights;Higher efficiency,longer runtime,more powerful function,easy to use,portable,brightness constant,long shot stronger.
What is your most need???Connecting People, Regalight® Portable Lighting Specialist.
"