Yongnuo YN-600 Pro 3200K - 5500K LED Video Light for Canon Nikon Camera Camcorder (Product Review)

[@gianfrancoserioli3789]

Dear sir, thank you for your video, which I enjoyed. I have a problem with my Yongnuo yn600l and I hope you can help me. When I turn it on, the words “E1” appear and it turns off within 10 seconds. Do you know anything about that? Many thanks.

[@theSUBVERSIVE]

Is it compatible with Yongnuo app?