Federal Signal’s Strobe
Federal Signal’s EN-WSSPA wall-mounted speaker strobe uses a Xenon flash tube that generates a high-intensity light visible from all sides. It offers a choice of field-selectable power taps of 1/8, 1/4, 1/2, 1, 2 and 4 W for use with either 25 Vrms or 70.7 Vrms audio amplifiers. The frequency range of the speaker is 400–4000 Hz. The strobe lights can be synchronized and can be used with amber or clear lenses. It is suitable for line supervision.