Voltage injection cables are a “T” cable that is used to inject 24v DC into the light string. We recommend that you install one of these for every 50’ of lights. The keep help keep the voltage in the light string consistentThey have a white dotted line on one of the injection lines which is the POSITIVE connection point, and the other cable is the NEGATIVE connection point . We suggest you use wagos for this connection.
Social activity such as joining a diamond lighting led