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minimum brightness and slowly reach full power
output. This feature prolongs the life of the modeling
lamp.
The Flash Tube
The Raya SDR-400’s flash tube is user-replaceable.
To replace the flash tube, do the following:
1. Discharge the flash unit by pressing the test
button.
2. Power off the monolight and unplug the power
cable from the flash unit and power source.
3. After 15 minutes, remove the modeling lamp and
any other accessory connected to the unit.
4. Wearing a pair of cotton gloves or using a soft,
dry cloth and using a pair of needle-nose pliers,
carefully unhook
the retention
spring loop of
the flash tube.
Make sure it is
disengaged from
the flash tube.
