MULTI-VOLTAGE REGULATED POWER SUPPLY, 2 AMP 6 Way Multi-Voltage; 2 Amps • This compact unit is ideal for all devices drawing up to 2 amperes • Fully regulated to 2 amps, assuring a constant, accurate DC power is delivered • Rotary selector for 6 voltages: 3, 4.5, 6, 7.5, 9,12V DC, with any currents not more than 2000 mA • Red and black binding posts enable easy connection • Size: 6¼” x 3¾” x 2¾”