Power Management: Switch to the ON position, and the flash will start charging (the charging indicator is dim). After several seconds, the charging indicator turns red and TT560 is then ready to shoot. For a test flash, simply press the test button. If the red charging indicator lamp flickers, it indicates low battery. In such case, the power will turn off automatically and you need to replace the batteries. After use, turn power switch to OFF position. Power Control: The flash unit has 8 steps of power output control which indicated by 8 pieces of LED lamp for different level. Press "+" and "-" to raise and lower power: 1/128,1/64,1/32,1/16,1/8,1/4,1/2,1/1
In M Mode, you can set TT560 onto your camera hot shoe or speedlite trigger hot shoe to trigger the flash unit. When shooting, adjust the flash power and press the camera shutter, the flash light will flash under the camera synchronous signal.
S1 Mode is applicable for slave flash in order to create many lighting effects. It is respectively applicable for manual flash environment. When the flash is S1 mode, it will fire synchronously when the master flash fires, comparable with the effect by the use of radio trigger. S2 Mode is applicable for slave flash in order to create many lighting effects. It is respectively applicable for TTL flash environment. The flash unit won't flash synchronously with the first flash but the second flash from the master flash.
For protection in continuous flashes, to prevent the flash head from getting too hot and damage, please do not flash over 20 times when in power lever 1/2,1/1. Please cool down the flash unit for at least 10 minutes. The over-temperature protection function will be activated if you continue to flash after 20 times. In this state the charging time will turn to 10-25s. Please cool down the flash unit around 10 minutes and it will turn to normal state.
When the inner circuit is over-heating, which indicates over use of the flash unit, the inner circuit will shut down power automatically. The flash unit will turn to normal state after the inner circuit is cooled down.