As a light bulb for mosquito repellent,The system includes seat body,Light source module and lampshade,The bottom of the heat dissipation part of the seat body is combined with a butt joint made of conductive material.And the other side of the heat radiating part away from the butt joint part is provided with a chimeric part.And a circuit board with a light source module is arranged in the fitting part.At least one light emitting diode with a wavelength between 560 nm and 620 nm is directly arranged on the surface of the circuit board.The top of the heat dissipation part and the outside of the light source module can be covered with light transmitting lampshade.When the light produced by the light emitting diode of the light source module is radiated to the outside through the lampshade,The mosquito can be avoided by the light with the wavelength between 560-620nm.In order to achieve the effect of mosquito repellent.本創作為有關一種驅蚊燈泡,係包括座體、光源模組及燈罩,其中該座體所具之散熱部底部結合有導電材質製成之對接部,且散熱部遠離對接部之另側形成有嵌合部,而嵌合部內裝設有光源模組之電路板,並於電路板表面上直接設有至少一個發出光線的波長為介於560~620nm間之發光二極體,即可再於散熱部頂部及光源模組外側處罩覆有透光材質之燈罩,當光源模組之發光二極體所產生的光線經由燈罩照射至外部時,便可透過波長介於560~620nm間之光線來避免蚊蟲的靠近,以達到驅蚊的效用。