About this item [DC Buck Converter] This Step Down Transformer 24V to 12V converts the DC 24V into DC 12V. Low power consumption. Voltage input: DC 15-40V, output: DC 12V. Max Current: 10A 120W. WARNING: 1. Please confirm whether the output voltage is correct before use; 2. Please confirm the positive and negative polarity of the power before wiring; 3. Must connect the input negative wire to GND or - before use, or the output volts will not change! [With Fuse & Safer] For the safety of users, this buck converter is equipped with fuses. When the voltage is too high, the current exceeds 15A, or if the circuit breaks down or is abnormal, the fuse will blow and the transformer will stop working, thereby protecting electrical appliances. In addition, this can reduce the risk of fire or explosion. High conversion rate over 96%, output correctly. High quality and performance for more durability and longer service life. [IP67 Waterproof Grade] This 24 volt to 12 volt converter reducer utilize