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rubseb t1_iu185m4 wrote

This is useless in so many ways, but perhaps the most profound way that it is useless is that I already have goddamn eyes to tell me what color a wavelength of light is.

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mawktheone t1_iu1v4tw wrote

So without looking if you're buying LEDs and they're listed as 452nm do you know what is?

Or if you're trying to match a product that already has lights, can you tell the shop what shade you need?

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Diamondsfullofclubs t1_iu2xhdz wrote

>I already have goddamn eyes to tell me what color a wavelength of light is.

Your eyes don't tell you anything without a reference, which is what this is.

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