As the name implies, a track light is a light installed on a similar track, and the illumination angle can be adjusted arbitrarily. It is generally used as a spotlight where key lighting is required.The track lights must be installed on the matching track. The interior of the track contains a voltage input (220V AC input in China, and can also be customized as a low-voltage input), and there are conductive metal strips on both sides of the interior of the track (high-quality made of copper , the inferior quality is made of iron), and there is a rotatable conductive copper sheet at the joint of the track light. During installation, the conductive copper sheet on the track light contacts the conductive metal strip inside the track, and the track light can be energized. The track lights are turned on.