I’ll start. :slight_smile:

Aspheric zoomies waste so much light to the sides…what if we turned that to a feature?
Paint the head white inside.
Make the sides diffuse white.
Add a head cap that keeps the lens clean but also - is flat white on the inside.

When extended - such light is somewhat similar in operation to BLF Lantern.
Remove the cap, somehow cover the sides - it’s a regular zoomie.