I just received my Octagon softboxes that are used as a light modifier for flash photography. They set up super fast like umbrellas but function more like traditional softboxes. I'll do a video later about how easy these things go together with my Speedlights.

500 LED Video light - Pop up Softbox

Normally you would use a strobe in the brolly, but the slotted design can be used for other light sources. Gabriel is already experimenting with using a 500 LED video light panel inside (photo above). He had to add a clamp to hold the umbrella in place. It blocks a bit of space, but should still help to change it from a small light source to a larger softer light source. Could even help with the multi-shadow issue that LED lights can sometimes cause. I'm curious to see the results. [Thanks Gabriel].

They also come in a large square version that still pops open like an umbrella. You can find more information about these following the link to the original article (click here).

Octagon Umbrella Softbox for Portable Studio Flash