Well that type of light will do the trick, i’ve red good stuff about SkyRay Kung M4 (here)
I have 3 led Skyray /mine is xm-l2/ but there is a big gamble of what will you get.
My Skyray arrived with wrong driver and no contact between LED’s and body, so i had to DIY cooling /hard stuff/ and then building a driver of my own /3* 8xAMC7135/, and… well it is not perfect fit but it puts out a ton of light
I’ve bought another one for a friend of mine and still got the wrong thing… /king instead of kung, and crappy cooling/
4x18650 is a good way to get a lot of light, just keep in mind that powering it is harder than adding 3milion emitters… 1 emitter should have at least a cell of his own!
Have looked at the SolarStorm because i am currently looking for something a bit smaller, but did not like the way it is turned on.
Hope i helped.
Edit: i bought this one today, since i hate the way output drops when my batteries drop from 4.2 to 3.7… i am currently looking for consistent output. Sure, SkyRay is WAY brighter.