• Preheat start
• Select the input voltage through the dip code switch, designed for battery power supply, with undervoltage protection function
• Switch value (dry contact), can be connected to remote equipment, used to feedback the working state of the lamp;
• European terminal structure

The PH7-425-40D24 ballast is a high-performance electronic ballast designed to operate low-pressure UV lamps in sterilization and purification systems. It provides precise voltage and current regulation for stable UV output and extended lamp lifespan. Key features include soft start, short-circuit protection, over-temperature shutdown, and high power factor for efficient energy use. Its compact and durable design enables easy integration into water, air, and surface disinfection systems. Compatible with wide-range input voltages.