Enclosure Box:Using high quality PC+ABS engineering plastics, long service life, IP65 waterproof and dustproof, anti-ultraviolet, flame retardant, transparent viewing window (The waterproof boxes on the market are all ABS materials) The rugged IP65 waterproof box is easy to install and easy to check the status of the main switch and lightning protection with the transparent cover. If the indicator light of the lightning protection device turns red, it means that a lightning strike has occurred The lightning protection module must be replaced in time. Surge Protector:20-40kA 2P DC1000V,Use standard lightning protection chip instead of piezoresistor; Solar Disconnect Switch:20A DC1000V 2-pilog,Silver Contact,Flame Retardant Shell,Sufficient Copper Coil; Enclosure: IP65,PC Material PC materials have excellent corrosion resistance and are better suited for manufacturing components that work in harsh environments than iron Two wiring methods:Type A: Solar Conector for faster and safer connection to solar panels, plug-and-play for faster and safer connection to solar panels, plug-and-play; Type B: Direct wiring through waterproof connectors and terminals 1 Strings DC1000V: 1x IP65 Waterproof housing PC+ABS Special materials for outdoor use; 1x Surge Protector DC 1000V 2P 20kA /40 kA type 2; 1x Solar Disconnect Switch 2-pole DC1000V 40A HASPD Solar Panel Switch Box is a new kind of solar disconnect switch with lightning protection. Mainly used for circuit insulation and lightning protection between solar panels and inverter, suitable for private or commercial photovoltaic power generation systems with DC12-1000V. The waterproof performance of this product reaches IP65, with a maximum current of 40 Ampere. The arc time of the disconnector is less than 8-milliseconds, making the solar system safer. To ensure its stability and long service life, the accessories of this product are made of high-quality materials. The shell is made of PC+ABS plastic and has functions of UV protection, water resistance, dust prevention and impact resistance. Built into high-quality magnets, with good arc extinguishing effect.