Intended for photographers on the road the phottix indra500 ttl studio light ndash a 500 watt ttl studio light featuring high speed sync under the hood is the ultimate in control ndash with the award winning phottix odin ttl flash trigger for canon and nikon built in the indra500 ttl is the perfect way to unleash creativity use ttl to shoot during fast moving events like weddings shoot on location under the harsh sun and control ambient light with high speed sync shoot wide open