It seems that much has changed on the most recent versions of this light. The driver is different (see pic) and I don’t notice any buzzing/PWM noise on any of the modes. But I don’t claim to have perfect hearing either. 
It seems that much has changed on the most recent versions of this light. The driver is different (see pic) and I don’t notice any buzzing/PWM noise on any of the modes. But I don’t claim to have perfect hearing either.