LED lights flicker on camera due to a difference in the frequency of the AC power supply and the LED's driver circuit. Most LED lights operate on direct current (DC), but the power supply in homes and buildings provides alternating current (AC) power. The LED driver circuit converts the AC power to DC power, but if the frequency of the AC power supply and the LED driver circuit do not match, it can cause a flickering effect on camera.
LED lights may appear to flicker on camera due to the difference in the frequency of the AC power source and the LED's own internal frequency. LEDs work by rapidly switching on and off, creating the illusion of continuous light. The rate at which they turn on and off is called the LED's pulse-width modulation (PWM) frequency.
In countries where the power supply frequency is 50Hz, LED lights with a PWM frequency of 100Hz or lower may appear to flicker on camera because the camera captures a series of still images in rapid succession, and the LED lights may be turning on and off at a different rate than the camera's frame rate.
To fix this issue, you can try one or more of the following solutions:
Increase the shutter speed: Increasing the shutter speed on your camera can help reduce the flicker effect.
Change the lighting: Use a different type of lighting such as incandescent or fluorescent lights which do not have a PWM frequency.
Use a different camera: Try using a different camera that has a higher frame rate or better image processing capabilities.
Use a filter: Use an ND (neutral density) filter on your camera to reduce the amount of light entering the lens
Use LED lights with a higher quality driver circuit: High-quality LED lights typically have a more advanced driver circuit that is designed to minimize flickering.
Adjust the camera settings: If the flickering is not too severe, you may be able to adjust the camera settings to compensate for it. For example, you could try changing the shutter speed or frame rate.
Use a camera with a higher frame rate: A camera with a higher frame rate will be less likely to pick up flickering in the LED lights.
Use an LED dimmer: If the LED lights have a dimming function, you could try using an LED dimmer that is designed to work with the specific LED lights you are using. This can help to minimize flickering.
Use a power conditioner: A power conditioner can help to stabilize the AC power supply and reduce flickering. This can be particularly helpful if you are using multiple LED lights that are all connected to the same power source.
Overall, the best solution will depend on the specific LED lights you are using, the camera you are using, and the environment in which you are filming. It may take some trial and error to find the best solution for your particular situation.
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