Originally Posted by
williaty
On top of the cost of that, you need a hell of a heat sink, a fan to push air through the heat sink, and a power supply/driver. The amazon listing is just for the COB, not a workable system. I did find an eBay auction last night for someone selling all the bits to make a 100W light source at 450nm for around $50, but it's bare bones mad scientist looking stuff. I'd love for someone to spend the money to see if 50W of 450nm is enough to make a plate in a short amount of time.
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