The answer to 'surge protector flickering lights' is that a flickering or blinking surge protector is usually a sign that it is doing its job and protecting your electrical equipment from power surges. When a surge protector detects a spike in voltage, it will momentarily divert the excess electricity away from your devices, which can cause the lights on the surge protector to flicker or blink.
This is normal and expected behavior and indicates that your surge protector is functioning properly. However, if the lights on your surge protector are flickering constantly or you notice other symptoms like your electronics not working correctly, it may be a sign that the surge protector is failing and needs to be replaced. In that case, you should consider calling an electrician to inspect your electrical system and install a new surge protector.