Coghlans Cooler Light Lightweight, plastic light illuminates inside of an ice chest, cooler, tackle box, or toolbox; easy to install with included adhesive tape Light turns on when lid is raised open, turns off when lid is closed shut; auto shut-off after 20 seconds of continuous use Runs on three LR44 1.5 volt button cell batteries (included) Affordable, essential gear for camping, backpacking, backcountry treks, motor homes, cabins, and more