Abstract: Light is the main factor that can affect the growth, development and activity of the larvae, and thus affect the ability of organic waste treatment. In order to improve the light intensity for black soldier fly larvae in winter, rainy days and indoor culture, promote the growth and development of black water fly larvae and enhance the ability of waste disposal, a controllable light supplement system was proposed. The system is mainly composed of controller, light compensation box, sensor, external executive parts and so on. Among them, the light compensation box is composed of cold light and warm light bands of natural light, which can be increased or decreased at will according to the actual needs; by controlling the hanging height of the light compensation module, the light intensity of the growing environment of the black soldier fly larvae can be changed. The system is easy to assemble, operate and of low cost.

Key words: black soldier fly larvae, light intensity, controllable light source, transducer