NOVELTY - The light emitting unit (10) is provided with LEDs or electroluminescence element (11). An illumination detection unit (25) is provided to detect neighboring luminance based on power generation output level of solar cell panel (30). A flicker control unit (21) for controlling operation of power supply control unit (22) according to detected neighboring luminance is provided on printed circuit board in control box. An uninterruptible power supply system (100) is installed between power supply control unit and external power supply unit (23) to reduce power loss.    USE - Flasher apparatus.    DETAILED DESCRIPTION - The light emitting unit is provided with LEDs or electroluminescence element. An illumination detection unit is provided to detect neighboring luminance based on power generation output level of solar cell panel. A flicker control unit for controlling operation of power supply control unit according to detected neighboring luminance is provided on printed circuit board in control box. An uninterruptible power supply system is installed between power supply control unit and external power supply unit to reduce power loss. The control box contains (in weight%) polypropylene resin (30-80), polypropylene (2-10), hydroxypropyl methylcellulose resin (15-60) and maleic anhydride. The polypropylene resin is selected from polypropylene homopolymer, propylene-ethylene random copolymer or propylene-ethylene block copolymer. The illumination detection unit is made of fluorite carbon. The ethylene content in the propylene-ethylene random copolymer and propylene-ethylene block copolymer is 0.5-5 weight% and 20-50 weight% respectively.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic block diagram of the flasher apparatus.    Light emitting unit (10)    Electroluminescence element (11)    Flicker control unit (21)    Power supply control unit (22)    External power supply unit (23)    Illumination detection unit (25)    Solar cell panel (30)    Uninterruptible power supply system (100)