AC110-9VAC220-9V Spot Welder Power Transformer - Efficient power conversion for smooth operation of the NY-D01 control system. This transformer is designed to provide efficient energy conversion to support reliable performance of the NY-D01 control system. - Dual voltage compatibility. Input options of 110 V or 220 V at 50 Hz enable flexible use in different power environments. The blue output is configured to a stable 9 V for dependable DC power. - Specifically designed for DC applications. Optimized for DC-powered devices and ensures reliable performance where DC supply is required. - Applications. Suitable for audio and lighting power supplies and for welding equipment. - Use scenarios 1) Power the NY-D01 control system in a DC spot welding setup. 2) Provide a stable 9 V DC source to audio or lighting power supplies in a workshop. 3) Supply a controlled 9 V DC output for DC test rigs or controllers that require DC power.