Safe & Reliable:This solar combiner box provides multi-layer protection against overvoltage, overload, overcurrent, Lightning-Pattern strikes, and short circuits-ensuring safe and stable operation for your solar power system. High Quality Materials & IP65 Waterproof Design:Made of high-quality ABS and PC materials, it offers superior heat insulation for outdoor installation. The IP65 waterproof and UV protection effectively resists harsh weather and environmental impacts, while the transparent window allows for easy inspection of the circuit breaker status. Easy Installation and Use:The plug-and-play solar connectors simplify the installation process, with all internal wiring pre-connected, eliminating the need for manual wiring and ensuring a hassle-free setup for your solar energy system. Complete Accessories Included:This comprehensive kit comes with all necessary components, including 1 surge protector, 4 pair solar connectors, 4 expansion tubes, 4 screws, 4 pair solar connectors pins, 1 wrench, and 1 grounding wire, ensuring you have everything you require for a successful installation. Wide Application: This versatile solar combiner box works with both grid-tied photovoltaic systems and off-grid solar power applications, making it ideal for multiple use cases such as houses, vehicles, camping, roaming, appliances, entertainment, and agriculture. The Solar Combiner Box features a photovoltaic DC isolator switch rated at DC 40 A/1000 V(max rating), equipped with a Lightning-Pattern protection circuit breaker (2 inputs, 2 outputs). It provides multiple protections, including overvoltage, overload, overcurrent, Lightning-Pattern strike, and short circuit protection, ensuring the safe operation of your solar system. Built to withstand the toughest conditions, the durable ABS+PC housing provides exceptional heat resistance. The tran