Ideally? Something like RMS and peak-to-peak amplitudes below 120Hz and below 1kHz, when fed with good AC power. The former would be potentially noticeable in

Ideally? Something like RMS and peak-to-peak amplitudes below 120Hz and below 1kHz, when fed with good AC power. The former would be potentially noticeable in peripheral vision or with eye movement, and the latter could affect filming, particularly with a rolling shutter.