Zoom ZOOMCAM 100 - Manual (Page 8)

F5
Select 50Hz to reduce flicker caused by Fluorescent Lights if your local AC
power is 50 Hz.
F6
Select 60Hz to reduce flicker caused by Fluorescent Lights if your local AC
power is 60 Hz.
Lo
Battery Low. Please download your pictures from memory to your PC first,
and then change the batteries as soon as possible.