Gw instek gps 195w 200w 3 4 channel dc power supplies gw instek gps 4303 p this gps 4303 200w triple output dc power supply from gw instek is a 4 channel linear dc power supply which provides an ideal solution for lightweight inexpensive bench top or portable applications requiring high regulation and multiple outputs p p equipped with a host of excellent features including the overload and reverse polarity protection and output on off switch which keeps the power supply s load safe