Elongated rope light with multiple color sections

A rope light, comprising:

• an elongated outer sheath, made of transparent material adapted for transmitting light therethrough, having a first end, a second end, and an axial slot extended from the first end toward the second end;
• an intermediate sleeve, having an axial groove, fittedly received in said axial slot of said outer sheath wherein said intermediate sleeve has a first color section having a predetermined first color and a second color section having a predetermined second color different from said first color;
• and
• an illuminating unit comprising a plurality of illuminators spacedly disposed in along said axial groove of said-intermediate sleeve and an electric input electrically connected to said illuminators and extended from said first end of the outer sheath to outside in such a manner that said illuminators are capable of respectively producing lights that transmit through said first and second colors sections of said intermediate sleeve so as to color up said lights with respect to said first and second colors.