I have several "Mr. Beams" lights - on the outside and inside of my shed, back stairs and areas that don't have hardwired lighting such as by my garbage cans. My neighbor was commenting on the great lighting in my shed so I gave him one too! I bought mine a couple of years ago (Shopping Channel) and was impressed with them from the start. Haven't had to change the batteries in them yet!
I was in Lowes a couple of weeks ago and was surprised to see them carrying several models. They're really quite handy especially in those areas that are usually unlit - small closets, attics, crawlspaces etc. I have one mounted above the front door - it makes it easy to find the keyhole at night when "someone" forgot to turn on the outside lights.