Used a few times. Power on and strobe firing have been confirmed. Due to an issue since purchase, an error occurs when increasing the strobe output value. I used it a few times at about 1/2 output. An error message appears when the output is set to MAX. (It seems to work without errors up to around 1.8.) Other than the above error, there are no problems using it as a strobe, but I would like to sell it to someone familiar with its operation. The modeling light also works. (Photos attached.) The items in the photos are all that are included. As a bonus, I will also include a GODOX XTR-16 2.4G wireless receiver. (It's a bit quirky.) (I've included a channel chart in the above image for clarity.) Since this is a used item, please refrain from purchasing if you are sensitive to such things. No claims and no returns accepted. Thank you for your consideration.