I ordered two and I received ok. For some reason the two boards are different but when I hooked with the solar CMP12 controller it start charging my 12V lead battery.

I ordered two and I received ok. For some reason the two boards are different but when I hooked with the solar CMP12 controller it start charging my 12V lead battery.

I ordered two and I received ok. For some reason the two boards are different but when I hooked with the solar CMP12 controller it start charging my 12V lead battery.

When I order it it was 7 euros and now it's 10 ! I find at alibaba the same for 4 .5dollars! Im electronics engineer the specs is not acurate the panel is 3.5 Watts maximum 4 watts I contact banggood that I find the same panel for 4 .5 dollars and I send them the link but they don't reply to my mail...then why they have this feature?

When I order it it was 7 euros and now it's 10 ! I find at alibaba the same for 4 .5dollars! Im electronics engineer the specs is not acurate the panel is 3.5 Watts maximum 4 watts I contact banggood that I find the same panel for 4 .5 dollars and I send them the link but they don't reply to my mail...then why they have this feature?

When I order it it was 7 euros and now it's 10 ! I find at alibaba the same for 4 .5dollars! Im electronics engineer the specs is not acurate the panel is 3.5 Watts maximum 4 watts I contact banggood that I find the same panel for 4 .5 dollars and I send them the link but they don't reply to my mail...then why they have this feature?