Horn Strobe, Marked Fire, Finish White, Flush or Surface Mounting, Alarm Current 341 to 570mA DC, 487 to 711mA FWR, Peak Output (dBA) 96.6, Flash (Candela) 95/115/150/177, Depth (In.) 13/16 in, Height (In.) 4 1/2 in, Length (In.) 2 3/4 in, Ambient Temp. Limits (F) 32 to 120 Degrees , Humidity Range ( Percent RH) 93, Voltage 24V DC, FWR, Standards UL, ULC, CSFM