Novel key light-adjustment circuit for plant light supplementation ballast

The utility model relates to a novel key light-adjustment circuit for a plant light supplementation ballast, and the circuit comprises a key processing indication circuit module, a main single-chip microcomputer circuit module, and a ballast main circuit module. The circuit provided by the utility model is characterized in that the key processing indication circuit module is connected with the main single-chip microcomputer circuit module; the main single-chip microcomputer circuit module is connected with the ballast main circuit module; the key processing indication circuit module is provided with an LED indicator light and an IC1 circuit board; the IC1 circuit board of the key processing indication circuit module is provided with eight voltage ports; when a key is pressed down and keeps pressed down for more than 10ms before popping out, IC1 takes this action as one key- pressing action, or the IC1 takes the action as an interference signal if the key is kept pressed down less than 10ms before popping out.