The Genesis FIELD CONFIGURABLE STROBES & HORN/STROBES are compact, protruding no more than 1 5/8". They utilize FullLight™ strobe technology to produce a smooth light distribution pattern, ensuring the entire area receives consistent illumination from the strobe flash. They have a selectable 15 to 95 or 95 to 177 candela output and the horn/strobes have a low/high dB settings. Ceiling mount. 16-33 VDC. UL listed. FM approved. White.