I got 2 Ulanzi lights to contrast the background of my camera for content creation. They both worked great for a couple months of heavy use while live streaming.
The colours are extremely bright and vibrant and they are okay for multiple uses such as photography, product advertisements, content creation and more.
But I do not recommend them unfortunately because of the battery life. For the past few weeks the display screen that shows the user the battery life and more than most often incorrect or doesn't work at all.
I would be charging them properly and would try to use them the next day, they couldn't hold a charge at all and would turn off after a few minutes after a full charging session through the night.
A good indication that it isn't charging properly was that the colour and brightness of the lights when in use would deteriorate very fast and wouldn't be useful in that situation.
Unfortunately, I recommend NOT picking these up unless there is a fix for the battery life or the display screen from Ulanzi.