Intended for photographers on the road, the Indra500 TTL Battery Powered Studio Light from Phottix offers a design driven by portability, flexibility and power. Both power cord-free and sync cord-free, the Indra500 is also hassle-free thanks to the Odin receivers for Nikon and Canon cameras built-into every unit. Phottix starts with a flash head with all the qualities of a studio flash such as 500Ws of power, adjustable from 1/128 to full power over an 8 stop range. Recycling time is 0.1 to 2 seconds with the included Li-ion polymer battery and 0.1 - 1 second with the optional AC adapter. Action-stopping flash durations as short as 1/15,000 (t.1) sec. are possible at reduced power settings for freezing splashes or peak-moment sports shots.