... b, DC steady voltage output: 1.5V-24V, rated current>2A, with ammeter direction, the accuracy not lower than Class 2. ... reset buttonc, AC low voltage output: 2V-24V, rated current>6A, with ammeter direction, the accuracy not lower than Class 2.5 ... overcurrent protection.c, two channel AC 220V voltage output, 5A current, with high sensitive short-circuit protection.d, accessory equipment: Voltmetre, ...