Attwood Corporation Light Base {New Style} 2-Pin light pole Chrome coated 12 volts D.C ATTWOOD BASE FOR STANDARD AND ANGLED POLE NAVIGATION LIGHTS Base is constructed of die-cast ZAMAK with Plate chrome finish Swivel cover protects the socket when light is stowed away Socket is keyed to prevent incorrect insertion of pole light Three countersunk holes for installation fasteners Includes 7.5 Inch hard wire leads for connection to 12 Volt DC power supply Dimensions: 4 Inch Length x 1.63 inch Width 1.38 Inch diameter installation hole size Base for Assembly with Socket Insert