BillLiptak,

Actually I carry an Arc AAA on the same biner as the photon.

It's a great light, but somehow I tend to use it when I want lots of light. For example, like for lighting my way down a dark stair well. Where if I just want to light the keyhole to my front door then it's the photon I use.

Granted the Arc AAA is a bit on the steep side price wise, I've had mine about 4yrs and I haven't once regretted the decision. Unlike some high end led lights.