This product must be installed by a licensed electrician (unauthorized personnel are strictly prohibited from operation). If any quality or wiring issues arise, we provide replacement or refund services. The power distribution box operates at 110-Volt/60 A input, integrates an energy meter and leakage protection, and features 4 NEMA 5-20 IP44 waterproof sockets, each protected by an independent 20 A branch circuit breaker. Designed for wall mounting with pre-wired internal assembly, users only need to connect the live (L) and neutral (N) wires according to the diagram for operation. Constructed from ABS material with an IP65-rated enclosure and an overall IP54 dust/water resistance rating, it effectively withstands rain, splashing water, dust, oil, and UV exposure.