I started seeing them on Ebay as part of cheap Chinese engravers. I just assumed they were commonly available 6+W diodes like the nubm44, just over driven or pulsed. I've even seen some rated at 15W.
This morning I just saw a somewhat no fake looking crowded sourced engraver / printer also offer a 10W laser. ($250 upgrade)
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www.indiegogo.com]
Am I mistaken? Are there some bigger diodes out there?
