Innovative Lighting Portable LED Stern Light w/Suction Cup [560-2110-7]Battery Navigation Light Requires 4 AA batteries (not included) Molded one piece body construction Shock resistant neoprene accents Incandescent or LED available Rated at 100,000 hours LED service life LED uses 90% less energy than incandescent Sealed heavy duty On Off switch Insert molded brass threaded mounting bushings Removable lamp carriage assembly 6. 18" x 2. 53" WARNING: This product can expose you to chemicals including BISPHENOL A (BPA)