How do I stop flickering?

How do I stop flickering, how to stop flickering depends on what is flickering, whether lights, screen, or video. For lights flickering in house, to stop flickering, check bulb is screwed tight, replace old bulb, check loose wiring, tighten loose connections, replace faulty light switch, check voltage fluctuation, call electrician if wiring issue, replace failing ballast in fluorescent lights, use compatible dimmer with LED bulbs, as incompatible dimmer causes flickering. For computer screen flickering, to stop flickering, increase refresh rate to 60 Hz or higher in display settings, update graphics driver, check loose video cable, replace damaged cable, adjust resolution, disable hardware acceleration if needed, check monitor power. For video flickering, to stop flickering, adjust frame rate to match lighting frequency, use anti flicker setting in camera, change shutter speed, use constant light source, fix in editing with deflicker filter. For candle flickering, shield from wind. So how do I stop flickering, identify cause, for lights check bulb and wiring, for screen check cable and driver and refresh rate, for video adjust shutter and frame rate, with general steps being secure connections, replace faulty parts, ensure stable power supply, use compatible components, and if electrical issue persists call electrician, as flickering often indicates loose connection or failing component needing replacement.