Roller Beleuchtung?

The problem often occurs with “mass” not present or too weak.

This means that a consumer – here the pears – works reasonably, the circuit must be closed.

It often happens – especially now in the damp season – that contacts are caused by oxidation, whereby the transition resistance increases considerably and the consumers no longer function or only function to a limited extent.

Therefore, you should check the lamp sockets and also all connectors for oxidation, make metallic blank and treat them with a contact spray.

LG