Ultrafire HD2010 vs Thrunite TN31

A light with a completely dedomed emitter gives roughly double lux values than with an original “domed” emitter.
That’s why we do this.

“Shorten the life of the LED.”

I don’t see any change on my dedomed lights till now (2 months is not a long time, that’s true).

some photos: https://budgetlightforum.com/t/-/12247#node-14327