Good part. I take my order display how much electricity is currently I reinbekomme on the solar panels of electricity and whether the current values are good. Must be installed in a housing but. This can be protected against humidity, the contacts. But to connect one needs Erlektrohülsen to maintain a permanent contact. Since the cable is zimlich Slim & Lite, the cable can easily tear at the contact point.
The dispatch has lasted a good two weeks, and there is no Sendungsverfolgunsnummer as it is sent from China Hong Kong Los airmail.