The Stern Navigation Signal Light, with a type designation of CXH4-1D, is a robust and reliable lighting solution designed for maritime navigation. It operates at a rated voltage of DC 24V, AC 110V, or AC 220V, and has a power rating of 60W/65W. The light source is an incandescent lamp, which can emit a white or yellow light. This model features a B22d lamp holder and provides a horizontal arc of 135 degrees and a vertical arc of +5 degrees. With a visible distance of 3 nautical miles and a protection class of IP55, it is well-suited for vessels navigating at night. The light's cable can accommodate an outside diameter of 10 to 14 mm, and it is designed to be seat-mounted. The operating temperature range of -30°C to +55°C ensures functionality in various environmental conditions. The lamp body is constructed from steel, while the lamp shade is made from PC engineering plastic, available in red, green, yellow, or transparent colors, and the unit weighs 4.9 kg. This combination of features makes the CXH4-1D an essential component for maritime safety, ensuring clear visibility and communication through lighting signals.