Nissin MG8000 Extreme Flash Gun is a versatile off-camera hot shoe flash that is designed for Canon flash systems. It is compatible with E-TTL / E-TTL II and can be used as either a Master or Remote Slave flash alongside these camera systems or other Canon speedlights.
NISSIN MG8000 DIGITAL FLASHGUN, Extreme high heat resistance. Above 1000 times continuum emitting in full power. quartz flash tube design. guide no 60 in meter/197 in feet (ISO100) at 105mm. with case, flash diffuser, requires AA batteries not supplied.