... Power Supply:2-way,multi-mode of indicating,additional 5V/3A availableCV,CC output,limiting and shorting protectionparallel for doubling outpt current ... 3CV≤1×10-4CC≤2×10-3DF1731SC2A,3A,5A0-30V×25V/3A0-2A,3A,5Afour metersCV≤1mVCC≤3mVCV≤1 ... 1×10-4CC≤2×10-3DF1731SLL2A,3A,5A,10A0-30V×25V/3A0-2A,3A,5A,10Afour LEDsCV≤1mVCC≤3mVCV ... 1×10-4CC≤2×10-3DF1731SB2A,3A,5A,10A0-30V×25V/3A0-2A,3A,5A,10Afour LCDsCV≤1mVCC≤ ...