The new MSU series LED signalling lighting equipment is designed to be used in hazardous areas as indicator of dangers and for any communication need, replacing also acoustic signals. It is a multi-unit device formed by a metal sheet base, fixable on walls, poles, by the EVML-50/G signalling lighting equipment and by an ‘Ex e’ aluminum junction box SA series. The EVML- 50/G LED signalling lighting equipment are available with a globe of different colours: blue, red, green, amber and clear.