Drop In Hidden Horn feature 12 or 24 volt DC systems. For vessels under 12 meters (39.4 feet). Size is 5.34-inch long x 3.4 -inch wide x 3.2-inch diameter. Uses "Sets" horn technology. Draws less than a/2 ampere. Unit is polarity protected. Solid state with no moving parts. Built-in water evacuation drainage system. Requires jig saw or router. Mounting gasket included.

Built-in water evacuation drainage system. Solid state with no moving parts. Unit is polarity protected. For vessels under 12 meters (39.4 feet). 12 or 24 volt DC systems.

Fit Type: Universal Fit. Voltage: 24 Volts. Item Dimensions LxWxH: 9 x 6 x 3 inches. Color: Black. Brand: Innovative Lighting. Date First Available: May 5, 2007. Best Sellers Rank: #209,312 in Sports & Outdoors. Customer Reviews: 4.1 out of 5 stars 65 ratings 4.1 out of 5 stars. : B000Q79R7O. Manufacturer Part Number: ?54000007. Item model number: ?540-0000-7. Product Dimensions: ?9 x 6 x 3 inches. Item Weight: ?3.2 ounces. Model: ?540-0000-7. Manufacturer: ?Innovative Lighting. Style: ?Modern. Fit Type: ?Universal Fit. Voltage: ?24 Volts. Item Dimensions LxWxH: ?9 x 6 x 3 inches. Color: ?Black. Brand: ?Innovative Lighting.