This bridge rectifier converts alternating current (AC) input into direct current (DC) output using four diodes connected in a bridge circuit. The unit is rated at 5 amps and 100 volts and features 4mm input connections. A circuit diagram is printed on the unit to help students understand the function of diodes in rectifying alternating current. The unit measures 5 x 3.5 x 1.5 inches. Suitable for physics and electronics classrooms.