These lightweight, compact power supplies are designed to reduce dependency on batteries. The stepped output conveniently covers all key battery combinations from 1.5V to 12V. Output is via 4mm safety sockets, and the unit is powered using the mains plug-top adaptor (supplied). Features include: thermal cut-out overload and short-circuit protection; fully regulated output at battery voltages; allows for extended use where battery life is an issue. Two versions are available, with a continuous output of up to 1 Amp or 2 Amps, depending on the current requirement.? Output:????????????1.5V, 3V, 4.5V, 6V, 9V, 12? Max Current:?? 2A max.? Dimensions:????110 x 110 x70mm? Weight:???????????210g