The Edwards 104ST Series AdaptaBeacon strobes are designed for light duty applications in industrial, commercial and institutional applications where short term intermittent visual signaling is required. The strobe unit provides a bright indication utilizing special optics within a shatter resistant polycarbonate lens mounted on a polycarbonate/ABS blend base. Suitable for indoor or outdoor installation. When mounted outdoors lens should be mounted facing up. May be panel mounted using the provided locknut or conduit mounted. An integral double threaded (internal/external) mounting nipple accommodates 3/4" (19mm) or 1/2" (13 mm) conduit mounting. Edwards strobe lights are particularly effective in high noise areas where ear protection must be worn and audible signals may not be heard or understood. They can advise personnel in manufacturing and process areas when an operation is starting or stopping. Often used to signal malfunctions in equipment, such as assembly line jams. Can warn personnel that they are entering a restricted area or an area of high danger.