Federal Signal Stack Light Module, Status Indicator Steady-Burn Mode, Series: LSL, 120 VAC, 0.13 A, 15 W Wattage, 3.93 in Diameter, Incandescent Lamp, Amber, 123 cd Light Output, 2500 hr Average Life, Specifications Met: ARRA Compliant, BAA Compliant, UL Listed, cUL Listed, CSA Certified, Surface Mounting, Wired Terminal, NEMA 1 NEMA Rating, 0 to 120 deg F, Polycarbonate Lens, 3.93 in W x 3.93 in D x 3.25 in H Dimensions