The Sunleaves Pulsar 2.0 MH 400-Watt Ballast has dual 120/240-volt capabilities and comes with a 120-volt power cord. Operators simply unscrew the voltage-protection plate, twist and retighten for 240-volt functioning; a specialized 240-volt power cord (necessary for 240-volt operation) is available separately to complete the transition. Pulsar 2.0 Ballasts are covered by an impressive eight-year manufacturer’s warranty.