That would be a tough call. Depends on how much you have going on in the room really. When I did that dance concert in the summer, one I posted a video of on here, I had a 400w mercury vapor UV down center. Now, you could only see the UV on the groups towards the center, it didn't really get upstage. I had a ton of light on the stage though, so I think it would depend on how much light is on your target.