KORAD KA3003D-3S - Precision Variable Adjustable 30V, 3A Triple DC Power Supply Digital Regulated Lab Grade
This is packed with features and at a cost that can't be beat!!  It has an easy to read 4 digit LED is used to display the voltage and current values and 4 programmable storage setting on each adjustable channel.This is a heavy duty single-channel, constant-voltage and constant-current power supply with low ripple and noise, high reliability and high accuracy. The voltage and current are continuously adjustable.   It is designed for use in labs, colleges and in production.