Aloha Khyberk,

You said; "Going over 5w for emitter power is pointless, you start hitting multi-chip emitters and they're fairly inefficient as it is. "

I have to disagree
In truth, everything from 2W. on up are multiple emitters.

My hands-on experience indicates that 5W. chips are very good, but 15W emitters are superior.
For actual growing that is.
I'll leave the why of that for the mathturbaters.

And, I gotta ask.
Did you ever try buying direct from Ledengin?

They sent me to mouser's

No pickin' fights, jus' stating facts.

Aloha, Y'all

Weezard