The TP-2305C is a regulated linear power supply with triple outputs: two outputs are continuously adjustable at 0-30V DC and 0-5A and the third output is fixed at 5V DC and 3A. The two outputs can be used either in independent series or parallel mode providing either two independent outputs or one output with twice the voltage or twice the current output up to 60V or 10A. The unit comes with 4 color LED displays providing accurate and clearly visible readout for the voltage and current value. LED displays are new trend in instrumentation because they are more durable and easily visible even in dark environment. This unit has a toggle switch in the back that allows operation in either 110V AC or 220V AC (please check that the switch is set appropriately before plugging it in). Specifications: Easy control for both current and voltage outputs Dual adjustable outputs: 0-30V and 0-5A Fixed output: 5V and 3A Input voltage: 110V AC and 220V AC switchable Line regulation: CV ≤ 0.01% + 2 mV CC ≤ 0.2% + 2 mA Load Regulation: CV ≤ 0.01% + 3mV CC ≤ 0.2% + 3 mA Ripple noise: CV ≤ 0.5 mV RMS CC ≤ 3 mA RMS Protection: constant current and short-circuit protection Display reading accuracy: +/-1% for voltage and +/-2% for current Environment: 0-40C relative humidity less than 90% Size: 14 x 10 x 8 Weight: 19 lbs