This cute little battery-run (3 AAA, not included) light does what it says - bright light even on "dim". It's like florescent lighting....casts a bluish tint. It's certainly bright enough, but the eerie tint will give some a headache or at least depression. It fits my Kindle 1 cover just fine. Very tiny price. Fine for short term usage, but for me, not for longer reading sessions. Yes, it will do nicely in a power outage!