Environmentally friendly and lowtemperature flameretardant materials are used in the circuit box holder. The design delivers strong mechanical strength, insulation, heat resistance and flame resistance. It is engineered to avoid fracture, deformation, combustion and short circuits during use. Product scope and compatibility Directly connects to the power lines of electrical appliances on cars and ships. Examples include car roof lights, headlights, and lowbeam lights, fog lights, warning lights, car refrigerators, and car fans. Suitable for centralized wiring and distribution in mobile environments where a grounded box is beneficial. Easy installation The circuit box holder is grounded and designed for straightforward installation; no complex setup needed. Construction and indicators The box with a ground bus is crafted from quality materials with meticulous attention to detail to ensure efficiency. Includes LED indicators and a robust construction to support reliable performance. Use scenarios Automotive lighting and accessories: serve as a centralized power distribution point for multiple lighting circuits (roof lights, headlights, fog lights) and other vehicle devices, with clear LED status indicators. Marine applications: manage deck lighting, cabin lighting, and other electrical devices on ships, using a grounded box for safety and organized wiring. Portable appliances in vehicles: support devices such as refrigerators and fans, providing safe and organized power distribution with indicator feedback.