The invention discloses an LED
mixed spectrum plant growth insecticidal lamp and belongs to the field of
plant LED illumination. The lamp comprises an
LED lamp dot matrix, a
single chip microcomputer control system, a shell and an insecticidal
power grid. According to the LED
mixed spectrum plant growth insecticidal lamp, power distribution of a power source which specific mosquitoes are fond of is obtained by experiments, through a specific
algorithm, proportions in a target
light source of three primary colors of red, green and blue can be obtained, the duty ratio of three path PWM
waves sent by the
single chip microcomputer control system is changed, and therefore
electric current driven by LED
constant current can be changed, the illumination power of an LED is changed correspondingly, and the target
light source can be obtained. The technical problems can be solved that a common plant insecticidal lamp is single in color and does certain harm to both
beneficial insects and the
human body, and certain guidance for pest killing by plants and optimization is provided.