Spelsberg Universal installation box with additional terminal compartment, (e.g. for installation of an electronic safety transformer up to max. 150 VA) for prefabricated construction, halogen-free, for the installation of LV/HV/LED lights and speakers, suitable for adhesive and nail fastening, detection and public address systems, for the installation of VDE-tested lights to DIN EN 60598 (VDE 0711), with F or MM marking, maximum installation height of HV lights: 105 mm HV lights: 110 mm Lamp output max. 50W/LED 25W, outlet aperture: Fermacell® plasterboard, variable to max. Ø 150 mm, 8 combi-conduit entries 4 x M20, 4 x M25, integrated conduit stopper for conduits M20, M25