Federal Signal StreamLine® Beacon, Combination Signal Sounder Modular Multi-Functional, Series: SLM500, 120/240 VAC, 12/24 VDC, 60/100/380/460 mA, 3.9 in Diameter, LED Lamp, Amber Lens, Audible Sound, 65 to 105 dB Sound Level, 64 Tones, Indoor/Outdoor Indoor/Outdoor, Specifications Met: CE Certified|cUL Listed|UL Listed, 85 fpm Flash, 50000 hr Average Life, Surface/Wall/Pipe Mounting, NEMA 3R/IP65 NEMA Rating, -22 to 122 deg F, Polycarbonate, 3.9 in W x 3.9 in D x 2.44 in H Dimensions