Reddit reviews DC Power Supply Variable, Adjustable Switching Regulated Power Supply 30V 5A with 4 Digits Display, Course and Fine Adjustments(00.01V, 0.001A), Data Hold - 110V/115CM Alligator Leads MDC01

▲HIGHER PRECISION WITH DATA HOLD FUNCTION - It is more precise to switch between coarse and fine tuning only by pressing one adjusting knob lightly from 0 to 30V, 0 to 5A. To press two knots 3 seconds simultaneously for holding a set of values and then press 3 seconds to release▲4 DIGITS READINGS WITH BACK-LIT LED DISPLAY - With a 0.01V and 0.001A resolution, 4 digits provide more accurate and clearer visible readout for the voltage and current value only via two knobs, extremely durable and easily visible even in low-light usage, meeting the needs of most people, ideal for small labs or the hobbyist at home▲HIGH-QUALITY WITH ESSENTIAL SAFETY - Grounding wire, thermal protection, voltage overload and short-circuit protection ensure the safety; The built-in fan reduce the operation noise, prolonging the life of product effectively▲CONSTANT VOLTAGE & CURRENT OPERATION MODE - Easy to dial in the desired voltage with the encoded-controlled fine and coarse adjustment knob, can easily see the amperage and voltage change as circuit components are switched in and out▲WHAT YOU GET - 1 x MDC01 Power supply host , 1 x Output power cord , 1x Input power cord, 1 x User manual ,(If you received items with signs of damage or wear during the shipping, please feel free to contact us and we promise help you solve the problem or resend.)