The Stern Navigation Signal Light, with a 30W power rating and Type CXH4-2C, is a robust and reliable lighting solution for maritime navigation. Designed to be mounted on vessels measuring 12 meters or above in length, this light serves as a critical signal liaison during night navigation. Its construction features a durable steel body and a lamp shade made from PC engineering plastic, offering resistance to ultraviolet radiation and preventing discoloration. The light emits through a horizontal arc of 135 degrees and a vertical arc of +5 degrees, ensuring visibility over a distance of 2 nautical miles. It operates at a rated voltage of 24V and accommodates a B15d lamp holder for an incandescent lamp. The light is available in white, yellow, red, green, or transparent shades, catering to various signaling requirements. With an IP56 protection class, it is well-equipped to handle harsh marine environments, ranging from -30°C to +55°C. The installation process is streamlined with a seat-mounted type, and the light's weight of 1.8 kg allows for manageable handling and setup. This particular model adheres to international maritime regulations and has been approved by the China Classification Society, ensuring compliance and safety for seafaring vessels.