The TrueLumen Inline Dimmer provides aquarists with an easy solution to controlling intensity and brightness of TrueLumen LED light strips. With a simple turn of the knob, you can turn your LED lights on and off as well as completely control the brightness to suit your aquarium's needs. The dimmer is quick and easy to install, simply plug it inline between the wall transformer and the LED strip. Rated for 12/24V with a 60 watt maximum load. Compatible with TrueLumen LED strips, PRO LED strips and TrueLumen Lunar Lights.