LED light signal 'traffic light function', red and green, LS series, anthracite Operation only with power supply Art. No. SV 539 LED or SV 539-948 LED. Split display: top red / bottom green The red or green display can be controlled separately. When connected to L' and N or F2 and the power supply, the red LEDs are energized, when connected to L and N or F1 and the green LEDs are energized (L + L' and N or F1 + F2 and is possible). Can be labeled with foil