The Biorad PowerPac 1000 Electrophresis Power Supply provides constant voltage, power, and current, ideally for isoelectrofocusing (IEF) applications, blotting, and general electrophoresis, as well as SDS-PAGE, two-dimensional electrophoresis, native gel electrophoresis, and horizontal DNA/RNA electrophoresis. The voltage output is adjustable from 5 to 1000 volts dc in increments of 1 volt. The current output is adjustable from 1 to 500 milliAmps in increments of 1 mA. The power output is adjustable from 1 to 250 watts in increments of 1 W. Fully programmable, the PowerPac 1000 can store up to nine separate methods with up to nine steps each.