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.) for On/Off, long press (>3 sec) to dim. If you connect to a strip light, the light will shift from bright to dim. If you touch it again, it will shift from dim to bright. This feature will work with both your LEDs and incandescent lights.