An electrically operated diffuser (210), comprising a housing (210) having a compartment (220) for receiving an active material (250), a heating element (208) located in proximity to the compartment (220) of said housing (210) to heat an active material (250) received in the compartment (220), at least one light emitting diode (290) disposed in said housing (210) and being positioned at a back surface (230) of the compartment (220) of said housing, such that when the active material (250) is received in the compartment (220) said at least one light emitting diode (290) shines through the active material (250).
