The Godox AD200  cordless flash mounts very easily into any Bowens mount softbox using the included bare bulb and an optional S-Type Bracket. But, as you can see from the image above, some light leaks out the bracket holes while also being absorbed by the black plastic instead of reflected out your softbox toward the subject being photographed. Here’s how a $15 accessory cures the problem to provide about 1/2 stop of additional flash power!

The Godox AD-S17 is actually designed and marketed as a dome diffuser. You can certainly use it as such directly on certain Godox bare bulb flashes when softer light is desired but a softbox isn’t practical.

But for the ultimate light efficiency inside a softbox, you can simply remove three screws and temporarily discard the dome diffuser, mount just the metal reflector to an AD200, and then insert the combo through the S-Type Bracket from the front side of the softbox.

Here’s the final result. No big holes (beyond angled vents). No black plastic to soak up your light power.

To test the difference, I grabbed one of my kid’s huge teddy bears and fired a few comparison shots. Both are at ISO100, f/14, and 1/200 camera exposure. Both had the flash power set to full (1/1). The left image was taken with a modified (dome removed) Godox AD-S17 mounted to the AD200‘s bare bulb and placed inside of a Godox 32″ x 32″ softbox with S-Type Bracket. The right image was the same flash and softbox configuration without the reflector.

While not blatantly obvious in a simple image comparison, my light meter showed the left configuration (with reflector) to produce 1/2 stop brighter light than the right configuration (without reflector). It was simply the $15 modified Godox AD-S17 reflector that made a 1/2 stop difference.

DISCLAIMER: No stuffed animals were harmed during this experiment. On the contrary, I think “Beary” enjoyed the attention! 🙂