Safety: They provide adequate illumination inside the panel, making it easier to identify components, wiring, and possible issues, which reduces the risk of mistakes or accidents when working on electrical systems.

Ease of Maintenance: When performing maintenance or repairs, having good lighting ensures that technicians can clearly see and inspect connections, circuit breakers, and other components without straining their eyes.

Efficiency: Proper lighting helps electrical workers quickly troubleshoot issues, making the process more efficient and reducing the time spent in dark or poorly lit conditions.

Compliance: Some safety regulations or industry standards may require proper lighting in electrical enclosures to ensure that work can be done safely and correctly.