Turn On The Power Switch - Canon Speedlite 220EX Instruction Manual

Turn on the Power Switch

About Auto Power Off
To save battery power, the power will turn off automatically after 90 sec.
of idle use. To turn on the Speedlite again, press the camera's shutter
button halfway.
A test flash cannot be fired while the camera's operation timer 4 or 0 is
active.
8
Turn on the power switch.
1
Set the power switch to <K>. The
flash will then start recycling.
The <a> lamp will light.
Check that the flash is ready.
2
When the flash is ready, the
<J> lamp will light.
To fire a test flash, press the test firing
button (pilot lamp).