Powered by Li-ion battery or AC adapter, Indra500 TTL Studio Light features Phottix Odin TTL Flash Trigger for Canon and Nikon built-in. Unit provides TTL, Manual, and Stroboscopic modes; high speed sync with 1/8000 s shutter speeds; and manual power 1/128 to full power in 1/3 stops. In addition, 500 Watt light supports 400 full-power shots when using 5,000 mAh Indra Battery Pack, with 2 second recycle times.