hello. i already have a rules card not all voltage. BAD 👎 👎 ....... 40v output = not all 20v input bad. 30v 5a output = not all 0.67v input . all not good

hello. i already have a rules card not all voltage. BAD 👎 👎 ....... 40v output = not all 20v input bad. 30v 5a output = not all 0.67v input . all not good

hello. i already have a rules card not all voltage. BAD 👎 👎 ....... 40v output = not all 20v input bad. 30v 5a output = not all 0.67v input . all not good

I build 12V charger for my e-scooter so i can charge from car or solar. 12V input and 42V output, max current is around 1.4A , i setup for 1A charge so current consumption is about 4A from input.

I build 12V charger for my e-scooter so i can charge from car or solar. 12V input and 42V output, max current is around 1.4A , i setup for 1A charge so current consumption is about 4A from input.

I build 12V charger for my e-scooter so i can charge from car or solar. 12V input and 42V output, max current is around 1.4A , i setup for 1A charge so current consumption is about 4A from input.

good DC to DC converter for my ibike battery. for solar panel voltage transformation

good DC to DC converter for my ibike battery. for solar panel voltage transformation

good DC to DC converter for my ibike battery. for solar panel voltage transformation

check Tobe done

check Tobe done

check Tobe done

item OK, function also ok

item OK, function also ok

item OK, function also ok

400W DC-DC High Power Constant Voltage Current Boost Power Supply Module its good and working well. good for COB chip LED. both current and voltage adjustable

400W DC-DC High Power Constant Voltage Current Boost Power Supply Module its good and working well. good for COB chip LED. both current and voltage adjustable

400W DC-DC High Power Constant Voltage Current Boost Power Supply Module its good and working well. good for COB chip LED. both current and voltage adjustable

Fast delivery add good quality.

Fast delivery add good quality.

Fast delivery add good quality.

Pretty fast deliverey, first optical impression the module looks well build and has a thick windings coil mounted. The heatsinks needed some filing off the sharp edges. Board not tested for its operation capabilities yet. Thanks Banggood . Bye, Hans

Pretty fast deliverey, first optical impression the module looks well build and has a thick windings coil mounted. The heatsinks needed some filing off the sharp edges. Board not tested for its operation capabilities yet. Thanks Banggood . Bye, Hans

Pretty fast deliverey, first optical impression the module looks well build and has a thick windings coil mounted. The heatsinks needed some filing off the sharp edges. Board not tested for its operation capabilities yet. Thanks Banggood . Bye, Hans

works well with my 12V Lipo and with 42V output

works well with my 12V Lipo and with 42V output

works well with my 12V Lipo and with 42V output

no problem.

no problem.

no problem.