Celestron 44306 Manuel D'instructions page 7

3. For high power, you will move the power switch to the "HIGH" setting
which will give you 50x. At the high power, your views will be greatly
magnified but somewhat darker. The most enjoyable views can be at the
lower powers which have a wider field of view and brighter illumination.
Note: The power switch may have to be adjusted slightly near the
"LOW" and "HIGH" positions to achieve the best focus position.
Illumination
Figure 4
To get the sharpest and best views, the illumination
(lighting) will have to be adjusted.
1. The illuminator is turned on by a switch dial shown
in Figure 4. Turn the switch to the "ON" position.
2. The light from the illuminator can be increased or
decreased by moving the illuminator switch. You
will have to experiment to provide the best lighting
for the best views.
7