Vigortronix 1w ac dc power supplies single output 33v 48v vigortronix vtx 214 001 105 this ac dc 4 pin power supply with 1w single output from vigortronix is a 5v transformer manufactured for use in applications where space is limited thanks to the encapsulated design of the module featuring a built in transformer weighing a mere 20g this pcb transformer is not only cost effective but also boasts a host of excellent features such as the prisec full isolation gt4000vrms low standby