Well, your thread title says 1AAA, but the link provided shows a (4)AG13 cell light. I own the 1AAA version. Got it for $5 on clearance at Target. I wuld not call mine pure white output, more slightly purple, but it's all relative and personal preference. Ditto the switch comment.
I also have two fo the (4)AG5 Nano tac versions. The switches on those give no audible click whatsover, so you're never really certain when you can release the switch and be assured it will stay on. I like both lights, though. The 1AAA is currently my "go-pee-in-the-middle-of-the-night" light!
Plenty of light for finding another Terazosin tablet, too!