LED light signal 'Note', blue, LS series, stainless steel (painted aluminum) with a neutral, unlabeled 'Note sign' approx. 71 x 71 mm (overall dimensions approx. 71 x 142 mm) Operation only with power supply item no. SV 539 LED or SV 539-948 LED. For mounting on the power supply, the frame item no. LS 981.. (1 to 5-way) or AL/ES/GCR 2981.. (1 to 5-way) is always required. Connection to L and N or F1 and the power supply. with blue LEDs We label LED information signs for you! Further information on the Internet at www.jung.de >, Service >, LED labeling