Pack of 4 LED dimmer knobs designed for 0/1-10V DC dimmable LED drivers. This low-voltage electronic PWM dimmer integrates seamlessly with most LED driver modules, offering broad compatibility across various LED lighting systems. The dimmer knob is intended for LED lights with a dedicated dimmer circuit and is engineered to work with built-in PWM circuits to enhance performance and functionality. Provides a dimming range from 5% to 100%, enabling smooth, stepless dimming without flickering or humming. Allows precise control over light intensity for desired ambiance. Simple installation with clear markings: brown wire for 'DIM +' and blue wire for 'DIM -'. Not intended for direct AC connection; proper installation is required for safe operation. Slight color variations may occur due to manufacturing or display differences, which do not affect functionality. Color: Black. Material: Plastic. Package includes: 4 x dimmer switch. Package content limited to listed items. Note: Lighting and screen settings may cause slight color differences. Measurement tolerance: +/- 1-3 cm.