Horn Strobe, Lens Color Red, Voltage 120VAC, Current Drawn 148 mA, Sound Level 90dB @ 10 ft., Height 5-1/2 In., Width 5-1/2 In., Depth 5/8 In., Housing Color Gray, Housing Material Engineered Thermoplastic, Light Output 21 CP, Flashes per Minute 60, Mounting Surface, Operating Temp. 32 to 120 Degrees F Indoor, -31 to 150 Degrees F Outdoor, Standards UL