It is brighter, but like you I used to think the difference would be greater but if you look into it it's how you notice brightness with your eyes,140 to 180 is not really that big a jump, both are useful upgrades though and worth doing, but if you look about you can get miles more light out of a much smaller torch,i give you an eagletac p100a2 with the s2emitter,328 lumens off 2aa batteries, and with shipping and discount from the us about 30 ish pound, there are others if you look about I'm just a big et pure white tint fan