... electricity equipment:For teacher: (size: 2800x700x850)a, DC large current output: 9V, rated current:40A, 8S(+-2S) auto blackout.b, DC steady ... reset buttonc, AC low voltage output: 2V-24V, rated current>6A, with ammeter direction, the accuracy not lower than Class ... protection.c, two channel AC 220V voltage output, 5A current, with high sensitive short-circuit protection.d, accessory equipment: ...