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Posted: 9/9/2013 3:50:41 PM EST
I'm ordering some Glo Toobs but they come in two different wave lengths 875 or 950. What's the difference and which to order? I'm unclear why they offer the two choices.
Link Posted: 9/9/2013 5:05:19 PM EST
The shorter wavelength should be perceivably brighter under goggles, as the photosensitivity of a gen 3 tube peaks at about 900nM and begins to diminish.

The shorter wavelength might also be slightly visible when looking right at the led emitter, the higher wavelength should be fully outside the visible spectrum.
Link Posted: 9/10/2013 3:29:26 AM EST
875 and 950 should both be invisable to the naked eye, and both are above gen 3 peak sensitivity.

950 should be invisable to gen 1 and gen 2.

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Link Posted: 9/10/2013 5:55:51 AM EST
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Originally Posted By xjronx:
875 and 950 should both be invisable to the naked eye, and both are above gen 3 peak sensitivity.

950 should be invisable to gen 1 and gen 2.

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I wouldn't say "invisible" but older systems may not perceive it as well as Gen3 does. Gen2 with Super S25 photocathodes will see it as well as Gen3.

Gen0 will probably see it without any problems, but then Gen0 can see stuff that even Gen3 can't.

Regards
David
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