YIHUA Digital 30v 5a Dc Power Supply Variable Regulated Adjustable DIY for Electronics Projects Repair Repairing Board Machine Mobile Phone Volt Amp 305D-I DC Power Supply Adjustable 30V 5A Power Regulator 220 Watts Computer PSU with 2 SATA Cables  (Grey)

Features: - adjustable source / variable source / benchtop font / adjustable font; mar?a Yihua 305d - professional model; - suitable for countertops; - also indicated for use in universities; - it has constant current control; - voltage variable from 0 to 30 volts; - variable current from 0 to 5 amperes; - two independent digital displays; - it has a turbine for heat dissipation; - selectable input voltage: 127v / 220volts; - safety system for constant and short-circuit current maintenance; - 4 adjustment knobs; - off / on button; - comes with cord with banana plugs and alligator claws; - power plug ACcording to the brazilian standard; - better indication of market; - excellent ratio; specifications: - power: 127 / 220v AC (selector) + 10%, 50 / 60hz; - output voltage: DC0 to 30v; - output current: 0 to 5a; - overload protection; - protection against reverse polarity; - input power: 350w (maximum consumption); - cooling by heatsink and turbine (cooler); - ACcurACy of display voltage: ± 1% ± 1 digit; - ACcurACy of the current display: ± 1% ± 1 digit; - operating temperature: -5 to + 40ºc; - storage temperature: -10 to + 40 degrees c; - coefficient of temperature: = 200ppm / ºc; - operating humidity: <90%; - storage humidity: <80%; - voltage stability: = 0,01% + 2mv; - constant current stability: = 0.1% + 3ma; - load effect: = 0.01% + 2mv / = 0.2% + 3ma; - ripple and noise: = 1mv RMS; - recovery time: = 100us; - input protection; - asymmetric type source; - dimensions (LxWxH): 25,5x12,5x14,5cm; - weight: 4.5 kg.