The big brother of my favorite tube lights (Viltrox K21) was just announced, and now it's longer than ever!
Viltrox K90
https://geni.us/ViltroxK90 (8% OFF code on Viltrox.com: "8off")
Viltrox K21:
https://youtu.be/8ya4RiP5r2g?si=gH0vSjtOE27LnbwG
Viltrox 16mm: