Samsung PL64E8000GFXZP - Manual (Page 414)

You can test the brightness of room
and the camera angle.
–
Brightness Test : This test checks to
see if your room is bright enough
for Motion Control to work properly.
Select Start using your remote. The
test starts and takes a few seconds.
(Appropriate ambient brightness: 50
– 500 Lux)
N Do not illuminating a sunlight or
lights directly into the camera lens.