The present invention is to provide a cellular phone capable of detecting
counterfeit currency or lighting comprising a counterfeit currency
detection bulb, a lamp and a keypad, wherein the keypad includes a first
dual key in association with the counterfeit currency detection bulb, a
second dual key in association with the lamp and a plurality of third
keys, such that in response to pressing the first dual key or the second
dual key, the cellular phone activates the counterfeit currency detection
bulb for detecting counterfeit currency or activates the lamp for
lighting respectively.