Werma-Signaltechnik-LED-Permanent-Beacon-Green-Werma-Signaltechnik-853-200-54-P-The-Werma-Signaltechnik-853-200-54-is-an-LED-Permanent-Beacon-that-can-be-wall-base-&-ceiling-mounted-The-beacon-is-easy-to-install-thanks-to-a-snap-on-fixing-bracket-Simply-drill-two-holes-attach-the-fixing-bracket-to-the-wall-&-snap-on-the-beacon-The-cable-can-be-fed-through-one-of-the-eight-self-sealing-membranes-without-the-need-for-any-tools-Once-the-cable-has-been-connected-to-the-terminals-the