1.Thickened back panel to improve the heat dissipation performance of MOS tube close to the heat dissipation board design, can work normally at 60 ambient temperature. 2.The housing is made of ABS engineering plastic, with features such as high strength, impact resistance, high fire point, anti - aging, corrosion resistance, effective service life and safety. 3.Large section connection port Adopting large sections, large distance terminals, improves insulation performance and installation reliability, effectively reduces circuit voltage drop and reduces losses 4.Liquid crystal display Using LCD liquid crystal display setting, display timing setting corresponds to the LCD screen one by one, clear and intuitive simultaneous keystroke operation can complete the setting. 5.Suitable for various environments: Home, school, street, station, power station, pastoral area, fields and other off-grid solar power systems