Ryan, if you read back the configuration from the TCCR0 registers and compare with datasheet, you would discover I am using "Fast PWM" (it's just standard non phase corrected PWM). It's an 8 bit timer with no clock prescaling, so I'm almost positive it's about 31KHz. Haven't actually measured it. In any case, it works well enough. It seems to be fast enough that no pulsing is visible on camera.
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