Spare lamp: BLB-4W, can trace all types of fluorescent marks. - For most European and Asian countries, such as Euro, Pound, Peso, Yen, Won & etc - Not suitable for the US dollar - Powered by 4 * AA batteries(Not included)Portable to carry - Specifications:Model: 318Light Source: UV (Ultraviolet)Battery Type: 4 * AA Batteries (Not included.) Counting speed: 600 sheets / minute - Power Consumption: 2WPackage List:1 * Cash Detector(NOT including other things in the pictures)