I've had this light in my closet for a couple weeks now. Batteries seem to have a decent life for the amount of light you can get out of it. The back twists off easily to be able to use the two pre-drilled holes to attach to a surface if you'd like. I've just held it up to find my way around the closet, but could be installed easily and probably light enough to use an adhesive strip. I wish it didn't take so many batteries, but a nice little light to pop on when needed!