The chemical substances in fluorescent sticks are mainly composed of three substances: peroxide, ester compounds and fluorescent dyes. Simply put, the principle of light-emitting stick is that peroxide reacts with ester compounds, and the energy after the reaction is transferred to fluorescent dyes, and then fluorescence is emitted. At present, a glass tube interlayer is usually placed in the common fluorescent rods on the market, and peroxides and esters are isolated inside and outside the interlayer. After kneading, the two compounds react to make the fluorescent dye glow.