The circuit is designed to reduce safety risks. Due to a low current and low voltage, it does not require a high specification line group. However, as the lines on the daytime running lights are arranged in the engine compartment, the ambient temperature will be high, and the lines will definitely go through major pieces and parts inside the compartment, which is why we use all Teflon heat resistant line groups. We also add circuit safety protection at the power input end to reduce safety risks for the daytime running lamp and engine compartment, avoiding combustion caused by spontaneous burning of the DRL circuit.