Strobe with Horn, Engineered Thermoplastic Housing, Length 5-1/2 In., Height 5-1/2 In., Depth 5/8 In., Decibels 90dBA @ 10 ft.., 120VAC, 148 mA Amps, Flush or Panel Mounting, Engineered Thermoplastic Housing Material, Operating Temp. 32 to 120 Degrees F Indoor, -31 to 150 Degrees F Outdoor, Gray Housing, Red Lens Color, UL Standards