Neewer TT560 Flash Speedlite for Canon Nikon Sony Panasonic Olympus Fujifilm Pentax Sigma Minolta Leica and Other SLR Digital SLR Film SLR Cameras and Digital Cameras.

　　Suitable with Canon Digital EOS and Nikon DSLR video cameras.

　　Power Management: Switch to the ON, the flash will certainly start charging (the charging indication is dim).

　　For a test flash, press the test button. After use, press the ON/OFF to OFF to power off.

　　Red charging indication light flickers in every Ones; it suggests low battery.

　　Features:1. M Mode Press the MODE secret to M Mode. In this mode, you can set the TT560 to your video camera hot shoe or speed lite trigger hot shoe to trigger the flash device. When shooting, adjust the flash power and press the electronic camera shutter, the flash light will flash under the cam synchronous signal.2. S1 Mode: Press the MODE key to S1 Mode. The Mode applies for slave flash in order to develop numerous lighting effects. It is respectively appropriate 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.3. S2 Mode: Press the MODE key to S2 Mode. The mode applies for slave flash in order to create lots of lighting effects. It is respectively applicable for TTL flash environment. The flash system won't flash synchronously with the first flash but the second flash from the master flash.4. Power-saving Function: To conserve battery power, the flash will certainly go into stand-by state in about 30 minutes of idle use. Press any button to wake it up. In S1/S2 mode, the flash will enter stand-by state in about 60 minutes of idle use. Press any button to wake it up. In Power-saving mode, the charging indicator flickers in every 3 seconds.5. Protection Function (1) Protection in continuous flashes (2) Systematic over-temperature security. Four AA batteries required.