LED cord dimmer for switching and dimming dimmable LED bulbs, high-voltage halogen bulbs, and halogen bulbs with electronic transformers. Not suitable for controlling inductive transformers, fans, or motors. Complies with UKCA and CE standards. Rated voltage/frequency: 220240 VAC/50 Hz. Adjustable power range: 3100 W. Dimensions: 81 x 33.4 x 22 x 34.8 mm. Single wire connection: 0.752.5 mm, black. Adjust brightness by turning the control knob clockwise to increase brightness to maximum, or counterclockwise to dim to minimum. Turn the MIN knob counterclockwise to set desired brightness level. Instant on/off functionality with no delay. Built-in electronic overheating protection: unit shuts down at 80C and automatically resets when temperature drops below 80C. Note: Only use dimmable LED bulbs to prevent flickering issues with this dimmer.