All brightness levels besides full brightness runs thru PWM, which is a bit annoying if it's meant to be used while filming a video.
I can't complain too much since I got it for $5.
I can't complain too much since I got it for $5.
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Basically to get a dimmer light, it just flashes the LED really fast so it appears to light up.
Unfortunately a rolling shutter camera will catch that flicker and give weird artifacts.