3 is made of 316 stainless steel

x 5-1/2" Height with a domed lid

All meet ABYC A-23 for boats up to 12 meters

flush mount

The ventilator facilitates air circulation and prevents dampness

Tower Navigation Bayonet LED Bulb, Cool White Plumbing 3 is made of 316Tower Navigation Bayonet (back entry) LED Replacement Bulb,Cool White, 10 30VDC (2. 5W), Omni Directional, BAY15d Socket This is the highest output LED tower cluster available for marine use. It uses 18 surface mount cool white (SMD) LEDs arrayed in 6 planes for 360deg; visibility. Proprietary PWM Constant Current chipset results in high performance across the entire 10 30VDC range. This product is ideal for masthead (anchor light) and stern lamp