... -way,multi-mode of indicating,additional 5V/3A available CV,CC output,limiting and shorting protection DC Two-way ... 2-way,multi-mode of indicating,additional 5V/3A availableCV,CC output,limiting and shorting protectionparallel for doubling outpt ... current In series for doubling output voltageModel:DF1731SL2A,DF1731SL3A,DF1731SL5A,DF1731SL10A DF1751SL3A,DF1751SL5A,DF1761SL2A, ...