Features: Wide Input and Accurate Output Input ranging: DC7V-36V wide input, for a variety of power supply environment (like for industrial power supplies and more). Fixed Output: Supports 3.3V, 5V, 9V 12V standard voltages option with ±3%-4% accuracy to meet the power supply needs of mainstream low-Voltages equipment. Over-voltages protections: automatically cut off when the input or output Voltages is abnormal to prevent equipment damage. Overcurrent/short circuited protections: Triggering current limit or shutdown when current exceeds the threshold or output is short-circuited, and restart automatically after recovery. Overheating protections: inside temperature, over temperature load reduction or power off to avoid module burning out; anti-reverses connection designing. Specifications: Size:about 22x16.5x5mm/0.87x0.65x0.19in Component: ABS Input ranging: DC7V-36V wide Voltages input Current :up to 3A Fixed output: support 3.3V 5V 9V 12V Standard voltages Optional Accuracy ±3%-4% Package Includes: 1PC Voltages-Reducing Power Supply Module note: Due to the problem of lighting there is certain tolerances in product, please understand. Please allow 0-1cm error due to the measurement.