Features: Fast speed BLDC motor controller delivers 40A current per channel with 7 30V wide voltages ranges, supporting 1200W power output for demanding applications like fishing boats, pumps, compressors. Double channel bidirectional design provides total 80A/2400W power output with built in overload protections, stall protections, and undervoltage protections to ensuring safe operating . Features advanced cooling with integrated heatsink and fan to maintain optimal temperature during continuous powerful operating. Supports precise 50Hz adjustment control (1ms 2ms ranges) for accurate speed regulation, with 1.5ms neutral position for motor stop and smooth forward/reverse switching capability in propulsion systems. Plugs play not requires calibration when used with controllers reliabled for marine applications, agricultural machinery, ventilation and automated equipment Specifications: Power supply voltages: 7V-30V (the power supply cannot connection reversely, and the voltages cannot be too low or too high, otherwise the module may be damaged) Output power: single channel maximumed 40A, 1200W; double channel total power 80A 2400W with overcurrent protections Protections functions: over-current protections, stall protections and under-voltages protections Input: 50Hz adjustment, 1ms-1.5ms is reverse rotation, 1.5ms-2ms is forward rotation, 1.5ms stops Size about 97×92.5mm/3.82x3.64in Package Includes: 1PC Controller note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution