Prime Wire & Cable NLUTL1 Fluorescent Utility Light, 1-Pack Fluorescent light lasts 10 times longer & uses 43% less energy than a 7 Watt incandescent bulb Replaceable/recyclable T5, 4 Watt, 6 inch tube bulb included Operates on four "AA" batteries (included) - Use in locations where an electrical outlet is not available Two convenient mounting options: Hook & loop square or hang holes