In video lighting set up the broader or closer is the source, the softer light it generates. Lighting device should not be installed front on.

3. Whether you are
photographer or
cinematographer, you need
to have good understanding
of light and it principles.
This knowledge determines
how good or bad you are at
your job

5. A broader source creates softer light. Since the
device emits more rays of light, it spreads
illumination across the face. Rays hit a subject
from different directions. Thus they also act as a fill
light and make shadow fainter.

7. You can also get softer
light by setting up the
lighting tool close to the
subject. Since device is
near the subject, the
source of illumination is
broader by virtue of its
position (it seems larger).
The broader is the source,
the softer is the
illumination.

9. In video lighting set up, you should avoid the front on light.
If a lighting device is set up just in front of the subject, it wipes
out shadows of different features of the model. Shadow is
necessary to add a dimension to the face of a person

10. One should use
lighting tools wisely
so that perfect
balance between light
and shadow is
attained.