Simple Solution Spot Spotter is a battery operated Ultraviolet Urine Detector that reveals hidden urine spots and illuminates urine that is undetectable to the human eye. Spot Spotter helps identify the source of an odor so that it can be properly treated and removed. Works on any surface including carpet, upholstery, concrete, tile, sheet rock, and more. The average life of the blacklight bulb is up to 5000 hours. Requires 8 AA batteries (not included). Shipping weight: 1 1/4 lbs.