The answer to 'junction box flickering lights' is that a flickering light in a junction box is often caused by a loose connection or faulty wiring. This can be due to old or damaged wiring, improper installation, or a loose junction box cover. The flickering may be intermittent or constant, and can indicate a potentially dangerous electrical issue.
If the flickering is isolated to one light fixture, the problem is likely in the fixture itself or the wiring leading to it. However, if multiple lights connected to the same junction box are flickering, the issue is likely with the junction box or the main wiring. In either case, it's important to address the problem promptly to prevent potential fire hazards or further damage.