Single Circuit J-type track adapter(2-Wire Track Adapter). Installation method, turn off the power, pull down the arrow position to insert the product and rotate 90 degrees to the right, then turn on the power supply. No wiring required. Mounts directly to existing juno track and is ready to use. Installation does not take up space and the angle can be adjusted. Ideal for situations where air circulation is required and stuffy. For example, kitchen, attic, small corner, plant growth cooling.