As a light bulb for mosquito repellent,The system includes seat body,Light source module,Lampshade and filter,The base bottom of the seat body is combined with a butt joint made of conductive material.And a chimeric part is formed on the other side of the base away from the docking part.And a circuit board with a light source module is arranged in the fitting part.At least one light emitting diode is directly arranged on the surface of the circuit board.The top of the base and the outside of the light source module are covered with light transmitting lampshade.At least one light-emitting diode of the light source module is provided with a filter layer for filtering light beyond the wavelength of red and yellow light.When at least one light emitting diode ray is projected to the outside through the lampshade,The filter layer can be used to filter out the light beyond the wavelength of red and yellow light emitted by the light emitting diode of the light source module.Only leave red and yellow light to cast on the outside.To expel mosquitoes,This in turn prevents mosquitoes from approaching.本創作為有關一種驅蚊燈泡，係包括座體、光源模組、燈罩及濾光層，其中該座體所具之基座底部結合有導電材質製成之對接部，且基座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供發出光線之發光二極體，再於基座頂部及光源模組外側處罩覆有透光材質之燈罩，又於光源模組之至少一個發光二極體外側設有供濾除紅黃光線波長以外光線之濾光層，當至少一個發光二極體光線經過燈罩投射至外部時，即可利用濾光層來將光源模組之發光二極體所發出紅黃光線波長以外之光線濾除，僅使留下紅黃光線投射至外部，以對蚊蟲產生驅逐之功效，進而防止蚊蟲靠近。
