It features a chunky aluminum heatsink to dissipate heat generated during high-wattage operation.
Because this module operates at mains voltage (110V–230V), specific safety precautions are required: my 9892 datasheet
The (often listed as MY-9892) is a high-power AC voltage regulator module commonly used as a PWM dimmer or motor speed controller. Capable of handling up to 2000W at 220V AC, it is a versatile choice for DIY projects involving lighting, heating elements, and universal AC motors. It features a chunky aluminum heatsink to dissipate