This low voltage DC PWM speed controller provides adjustable speed control for compact DC devices. It supports input voltages of 1.8 V, 3 V, 5 V, 6 V, and 12 V with a maximum current of 2 A, delivering up to 30 W of output power. Key benefits - Function and performance: PWM speed control for precise, adjustable speed of small DC devices. - Compatibility: works with low voltage DC sources across the 1.8 to 12 V range and up to 2 A. - Power handling: capable of up to 30 W to drive small motors and actuators. - Integration: designed for straightforward incorporation into DIY projects and prototypes. - Stable operation: enables smooth speed adjustments to match load and task. Use scenarios - Robotics hobby projects using small DC motors that require variable speed. - DIY cooling systems with adjustable speed fans or blowers. - Small model vehicles or actuators where drive speed needs to be tuned. This description preserves the original specs while presenting clear, customer-focused benefits and practical applications.