Product Details
The Simplex 4903-9148 is a red Speaker Strobe, Retrofit Wall Mount S/V; 4-Wire Operation
30 candela strobe intensity; strobe is free-run or synchronized, switch selectable.
Speakers are for 25 or 70.7 VRMS, tapped at 1/4W, 1/2W, 1W, and 2W.