Produces an adjustable 0 to 20 V at 10 A regulated. Allows powering larger 0-20 volt projects from 115 vac. Size 7.9 x 4 x 9 at 20 pounds. Thermal and overload protected with auto Reset. Built in surge protection, illuminated switch, low ripple with heavy duty housing. Excellent for R&D lab, hobbyist, and electronic experimenter. A real nice addition to any lab environment.