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I was browsing the aisles at radio shack the other day, and saw some LED's that appeared clear to me, but claimed to be blue. Could these possibly be the same kind of blue LED I would need for indoor growing? $2.99 for one!

Offered by Ryan.

I checked with Digi-Key and found Panasonic LED's:

Blue (470nm) use 120mW at 3.5V $2.67 each or $24.95 for 10, $463.32 for 200
Red (700nm) use only 70mW $1.68 for 10 or $27 for 200 ($100.02 for 1000)

Of course, there is a shipping fee if the order falls beneath a certain minimum amount (I believe it is $25), but if we're ordering to build grow lights, we will easily exceed their minimum.

Offered by Roger.

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