New Led Or Not ?

PetFlora said:

I'm going to ask this is a couple areas: What is best nm mix for cloning? Or asked another way- to develop roots?

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blacktourmaline said:

They did not start out as a brown lens, they were used and the UV has degraded them.....to turn them that color. It happens all the time, i have UV diodes in mine that look exactly like it and they started out clear, they produce a blue around 410nm which its bandwidth +- 20nm dips into VIOLET And Ultra Violet.

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Q: Spuzzum

quick question on UV diodes

hey

I have a quick question on UV diodes. I've seen pictures of cheap Chinese UV's, where the dome has turned colour and is no longer clear. In fact, it looked like a red dome. I've been told that's what UV does to the dome. I just figured they used a red dome on a blue diode to get purple

My question is.. do higher quality diodes, such as a LedEngin UV, do the same thing?




A: evilc66

Re: quick question on UV diodes

Most of those use a resin of some sort, and will degrade over time. The lower the wavelength, the quicker it will discolor. The picture you posted is pretty typical for the cheaper "UV" LEDs (410nm isn't UV). LEDEngin LEDs use glass domes, so they shouldn't have any issues.[/b]

http://www.candlepowerforums.com/vb/showthread.php?333168-quick-question-on-UV-diodes

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Spuzzum said:

If you look at that ledgtow.eu page, he just did a root test.. FarRed promoted more roots.

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PetFlora said:

I know he has gone back and forth, but yes his last root test validates IR. I must have been high when I posted, because I meant nutrients not nms? lol

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