https://www.amazon.com/dp/B01N4OKAW7
This LED Running Light from Q-Seedling, which I received at no charge in exchange for this review, appears to be a reasonably well-made, useful running light.
There is a bright white light on the front, and two sets of red lights on the back. The light includes a flexible elastic harness so that wearing the lights should be reasonably comfortable while running or walking.
The battery for the lights recharges using a basic USB-A to Micro-USB cable.
One concern I have with this warning light is that the row of red lights that is below the triangle symbol are actually there simply to indicate how well charged the unit is. When five of those LEDs are illuminated the battery is fully charged. When only one of those LEDs are illuminated, the battery is low, and needs to be recharged. I actually have two issues with this. The first is that the red lights will be worn on one's back, so you will not be able to see the status of the battery while actually using the product. The second issue is that dedicating a row of visible LEDs, that seem like they should be doing a job with respect to warning or illumination, to simply providing battery status seems wasteful to me, and does not represent the best of designs.
The light has three modes--bright, less bright, and flashing.
Overall, the unit works well, and I expect many people will find it useful.