In the past couple of years, we have covered a bunch of awesome wearable devices for humans. Tail Lights happens to be a LED lighting safety system for horses. It installs easily and helps you and your horse stay visible. You have the option to change patterns and colors. The Tail Lights PRO units are rugged and work over 23.5 hours on a full charge.
The above video shows Tail Lights in action. You can find out more here.