... SPECIFICATION: Model No.OutputTol.R&NEffi.S-500-1212V, 0~29.0A±1%150mV74%S-500-13.513.5V, 0~25.8A ... ±1%150mV79%S-500-1515V, 0~23.2A±1%150mV78%S-500-2424V, 0~14.6A±1%150mV81 ... %S-500-2727V, 0~13.0A±1%200mV82%S-500-4848V, 0~7.30A±1%240mV83% 1 ... /12.97Kgs/0.0261CMB 500W Series Switching Power Supply S-500 ·Low price,high performance; ·With short-circuit and over-loading ...