This could be just the thing you need to get the light in your studio just the way you want it. It weighs 2.1 kg, so it's easy to carry around when you're taking pictures.
From Camix
Godox AD400Pro Flash Head [Brand New]
Clifton Cameras
Godox AD400Pro - Witstro Flash with Battery
WEX Photo Video
Godox AD400 Pro TTL Witstro Flash Head