Very Good.

Very Good.

Very Good.

tutto ok

tutto ok

tutto ok

These are extremely useful. Only got about 4.2V but need 12V to power that fan? This solves the problem. Not enough voltage from your small (phone sized) solar panels to charge those batteries? This solves the problem. Cheap and useful and efficient enough for DIY and testing things.

These are extremely useful. Only got about 4.2V but need 12V to power that fan? This solves the problem. Not enough voltage from your small (phone sized) solar panels to charge those batteries? This solves the problem. Cheap and useful and efficient enough for DIY and testing things.

These are extremely useful. Only got about 4.2V but need 12V to power that fan? This solves the problem. Not enough voltage from your small (phone sized) solar panels to charge those batteries? This solves the problem. Cheap and useful and efficient enough for DIY and testing things.

nice modul and seller send it on time

nice modul and seller send it on time

nice modul and seller send it on time

All works and it is good

All works and it is good

All works and it is good

Not tested yet

Not tested yet

Not tested yet

very nice board. newer versions have USB input.

very nice board. newer versions have USB input.

very nice board. newer versions have USB input.

So small and powerful enough!

So small and powerful enough!

So small and powerful enough!

good...good

good...good

good...good

very good, it was packed well, and i received the same item as described

very good, it was packed well, and i received the same item as described

very good, it was packed well, and i received the same item as described