Take a focused look at the specifications and what they mean in practice. This video explores the 0.4kV construction site distribution box, walking through its design, key components, and real-world role in low-voltage power distribution. We also tour the manufacturing facilities of Shenzhen Dongshengyuan Electrical Equipment Co., Ltd, showing how sheet metal fabrication, gas-filled switchgear production, and rigorous quality testing come together to deliver reliable distribution equipment for grid and industrial projects.