The H series fiber optic cold light source is powered by a switch power supply, with a small overall size, light weight, high efficiency, and long-term stable output characteristics, which makes the halogen lamp work stably and has a longer lifespan. Adopting slow start measures is beneficial for protecting the halogen lamp and the power supply itself. In the event of a malfunction, the cold light source will automatically enter a protective state to prevent various safety issues from occurring.