GTX LED 400W Strobe Studio Flash TTL AC/DC for Canon EOS. TTL Auto Metering Auto Sensing Canon, Nikon, or Sony TTL High Speed Synch 1/8000s 2.4 ghz Wireless Remote Control 16 channels, 3 groups Transmitter has 7 modes High Speed Flash 1st and 2nd curtain synch Hi Speed Multi-flash Li-Ion Battery 11.1v 6600 mAh 500 flashes on full power Max 6 hour charging time Auto shutoff 8 f/stop power range 1/128-1/1 with 0.3 step Built-in Overheating protection Built-in Optical Slave. 3.5mm synch LED 5W Modeling Lamp Color Temp 5500°K Audible Ready (On/Off) Bowens Mount Reflector Included Includes Battery, Charger, Reflector with diffuser and Kit bag. AUTO SENSING- The same flash can be used for Canon, Nikon, or Sony TTL...The item "GTX LED 400W Strobe Studio Flash Canon EOS TTL AC/DC Electronic Flash Unit Photo" is in sale since Thursday, October 11, 2018. This item is in the category "Cameras & Photo\Lighting & Studio\Flash Lighting\Monolight Flashes". The seller is "thegtxgroup" and is located in Simi Valley, California. This item can be shipped to United States.