Touch sensitive power cord on/off switch with dimmer. Power Cord switch cable: 2.1mm * 5.5mm DC 12-24V ON OFF in-line switch. An ideal in-line switch, very easy to use, no soldering needed. Suitable for many applications including controlling a LED strip. 2.1x5.5mm standard round connector. The touch type switch is multi-functional, short time press or touch (>1--3sec.) is on/off, long press (>3 sec) is dimming function, if you connect with a strip light, the light will shift from the bright to dim; if you touch again, it will shift from the dim to bright. This feature will work with both your LEDs and incandescent lights.