The manufacturer provides the following information: "400ws of additional power stacked between battery and pack. 2 head jacks. Send power to the pack or divide asymmetrically between head jacks. Can be stacked with other booster and used on ac power alone."
Andrew Thank you! You were so helpful and the photo shoot went great!
I did however realize my 2nd AC power would not work. It must have been the one I said got hot so it doesn't work. Where can I send this to get it fixed and I also have a light that isn't working, so I will send them together.