Final answer:
Usually, lighting tracks less than 4 feet require at least one support, but it's essential to follow the manufacturer's installation instructions and local building codes for the correct number of supports.
Step-by-step explanation:
The number of supports required for lighting tracks less than 4 feet in length can vary depending on the manufacturer's specifications and local building codes. However, as a general rule, a single track of this length would typically require at least one support, usually located at the center or end of the track for adequate stability and support. It's important to follow the specific installation instructions provided by the lighting track manufacturer for safe and secure mounting.