【Track Adapter】- Single Circuit H-type track adapter(3-Wire Track Adapter). 【Installation Method】- No wiring required. Mounts directly to existing track and is ready to use. 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. 【Fan With On/Off Switch】 - Once mounted on the track and energized, you need to press the button on the back of the fan to turn it on. Please note: When the unit is energized, the switch must be pressed for 3 seconds before it will work. 【Adjustable Angle】- Installation does not take up space and the angle can be adjusted. 【Application】- Ideal for situations where air circulation is required and stuffy. It can also be used with lights to prevent plants from being easily damaged. For example, plant shelf, plant stand, kitchen, attic, small corner, plant growth cooling.