Here is an old thread of mine for reference: https://www.candlepowerforums.com/t...e-updated-with-beamshots.259964/#post-3264143
To my eyes there 90 lumens bulb is not as bright as SF 60 lumens bulb. Now that I looked again it’s not a huge difference but you will be able to see it. Being able to run on a 16650 is a huge plus though.