The professional Falcon Eyes Studio Flash TF-300A has a light output of 300 Ws and a modeling lamp with 150 watt power. The TF-A series of Falcon Eyes flash strobes are extended for the demanding studio photographer. The flash units offer everything you would expect from a professional flash, like a quick recharge time, rugged metal housing, professional bayonet connection for accessories, a built-in slave receiver, cooling fan and precise adjustability. The modeling lamp can be turned of or on. It can also automatically be set to proportionate the light output.