The answer to 'EV charger dimming lights' is that a common cause is an electrical overload on the circuit. When an EV charger is installed, it draws a significant amount of power which can cause other electrical devices on the same circuit, like lights, to dim or flicker.
This is typically due to the charger exceeding the circuit's capacity or there being an imbalance in the electrical load. Solutions include upgrading the circuit's electrical panel, installing a dedicated circuit for the EV charger, or adjusting the charger's settings to reduce the power draw. If the issue persists, it's best to call a licensed electrician to diagnose and resolve the problem.