Features: brand new and high quality There are 3 types, Nixie tube controller+module, LCD controller+module, single drive module. Power supply voltage: for DC power supply 12-75VDC, can not be connected to AC, is strictly prohibited toconnect to 110VAC / 220VAC, is strictly prohibited to connect the positive and negative poles of the input end. Output current: within 30a, maximum for peak current 40A Static working current: 6mA 12v output voltage: maximum support 0.4A output, convenient for power supply to the controller, with powerindicator. Signal input: support PWM amplitude 5-24V, frequency up to 100kHz, support O- duty cycle. Specifications: Material: Metal+ABS Size: 110x78x36mm/ 4.33x3.07x1.41 in Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Motor Driver Controller