SEL CAND, SPKER/STR, 1/8-4W, CEILING WH. The G-SSPKCLPW Low-profile Ceiling-mount Speaker Strobe is designed to meet code requirements for audio, visual, and voice communications. This speaker-strobe offers dependable evacuation signaling and visual alarms, or a combination of both. It provides a 25 VRMS or 70.7 VRMS speaker with field-selectable power taps of 1/8 W, 1/4 W, 1/2 W, 1W, 2 W, or 4 W.