Abstract: The present invention discloses a portable light which comprises a case; a PCB assembly comprising a powering source; a plurality of LEDs emitting light in different color which are installed on the PCB assembly and electrically connected to the powering source and arranged to emit light; and a lens disposed in the case for protecting the LEDs and enhancing the emitting of light through the case; and wherein the PCB assembly controls current supplied to the LEDs such that one of the LED is lighted in a stead mode or a flashing mode. The portable light of the invention can be easily operated to emit single color of light and can be easily operated to change other color of light in a steady mode or a flashing mode so as to alert other traffic to their presence on the road, especially in an emergent circumstance.