Godox AD-H600B 600W Bowens Mount Flash Extension Head Protable Off-Camera Light Lamp for Godox Witstro AD600B AD600BM (AD-H600B) 600W Bowens Mount Flash Head, especially design for Godox AD600B TTL Flash and AD600BM Manual Flash Off-Camera Flash Light Lamp Head, it allows you hold the flash head on hand without to bear to much weight of the AD600 series Flash Ideal choose for outdoor photography and studio photography Support other Bowens mount AD600 series Flash Accessories Package Contents: 1 x Godox AD-H600 600W Flash Light Lamp Head