I am a bit of a lighting nerd and I record a lot videos indoors. I use my smartphone as my primary camera, so, it was only natural for me to invest in a ring light because it is best suited for small cameras.
I was initially impressed with the brightness output of this thing. The main reason I went with this light over the dozens of others in the market is because it can charge via USB, so I can keep a power bank handy to charge it when needed.
But as you read in the title, I am returning this, because the battery life after a full charge is very less. It only lasts for hardly an hour at Max brightness. I don't know if that's common, but it is not adequate for me.
I don't mind charging it longer if it lasts me longer. If you feel the same way, don't buy this. But if you're okay with the one hour-ish battery life and want something that charges over a USB port with it's own cable, you found a pretty good product.