Features: Supports waveform modulation frequencies from 50Hz to 500Hz for precise adjustment of servo and brushless motor positions and speeds, ideal for motor controller testing in remote controlled models and drones. Functions on 3 to 26v power with output up to 24W, ensuring adaptability to various energy sources for flexible applications. Features simple controls for quick setup and straightforward servo and motor controller testing and adjustment, suitable for all skill levels. The product uses a 12bit resolution microcontroller (not a 555chip), smooth speed regulation without steps. Suitable for controlling electric speed regulators, speed regulation of brushless motors, and can be used to modify violent fans Specifications: Component: PCB Size:Approx.1.6x1.15cm/0.62x0.45inch Working voltages:3V~26V frequency: 50Hz ~500Hz Output power: 12W ~24W Option Type:1pc Controller Board with Shell,1pc Controller Board; Applicable Scenario:Model aircraft and drones,Robot control,projects; Package Includes: 1pc Controller note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.