Horn Strobe, Marked Fire, Finish White, Ceiling Mounting, Peak Output (dBA) 90, Flash (Candela) 15/177, Standby Current (uA) 0, Depth (In.) 2 1/2 in, Height (In.) 6 27/32 in, Length (In.) 6 27/32 in, Tube Length (Ft.) 1, Width (In.) 6 27/32 in, Ambient Temp. Limits (F) 32 to 120 Degrees , Alarm State (mA) 54 to 289, Humidity Range ( Percent RH) 10 to 93, Standby State (mA) 0, Voltage 12/24V DC, Standards CSFM, FM, UL Listed, Includes Mounting Plate, For Use With Fire Alarm Panel