The Stern Navigation Signal Light, with a 30W power rating and type CXH4-2S, is designed for maritime safety and communication. Operating at a rated voltage of DC 24V, it utilizes an incandescent lamp as its illuminant, providing a clear signal in either white or yellow. The light's robust construction includes a stainless steel body and a PC engineering plastic shade, which is available in transparent, red, green, or yellow, ensuring visibility and durability in various conditions. With a horizontal arc of 135 degrees and a vertical arc of +5 degrees, it offers a visible distance of 2 nautical miles. The B15d lamp holder and IP56 protection class indicate a high level of protection against elements like water and dust, making it suitable for the harsh marine environment. The light's design allows for seat-mounted installation and operation within a wide temperature range from -30C to +55C, accommodating diverse weather conditions. Weighing 1.5 kg, it is a reliable choice for vessels needing to comply with maritime navigation standards.