My BriteLite Anti-Collision LED lighting system is still running strong. Not only are they incredibly visible, they serve many other functions.This is a great upgrade so you can see a Solo with those tired eyes!
https://3drpilots.com/threads/brite-lite-anti-collision-lighting.11505/
https://3drpilots.com/threads/brite-lite-led-lighting-system.8863/