Hello !
I have for sell 8 set of 640nm 150mW diodes from Marco
I have 4 kits "mounted", who have always working with a tec (under 25°)
and 4 other are sell as kit, you must assemble them by yourself (never used)
Each are 150€ /kit (shipping include )
(I will consider diodes sold when at least 6 kits are sold)
Regards
Mickael