For powerboats and sailboats less than 12m or 39.4'. Chrome-plated brass. 1nm visibility. Sold in pairs. Case Material: Chrome-plated brass with black plastic base Mounting Hardware: #4 FH Volts: 12V 4-1/4" x 2-3/8" Base, 1-7/8"H Draw: 0.80A Replacement Bulb: Model 297376 Warranty: Five years