LED Thru-Hull Mount Underwater Light (0176) Chrome Plated Bronze with Mounting Ring 10 Feet of 16/2 Electrical Cable Safety Seal Design Prevents Water Intrusion in the Event of Glass Breakage Terminal for Bonding Wire L.E.D."s Provide Longer Life, Less Heat and 1/10th the Energy of Standard Lights Tech. Info 12v, 5w, 0.4 Amps Bulb: 20° Beam 85 Lumens Lab Rated Bulb Life: 50,000 Hrs Length Overall: 6-3/4" Flange Diameter: 3-3/4" Mounting Hole Diameter: 2-3/8"