Explain to me?

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mvario

mvario

Newly Enlightened
Joined
Mar 9, 2003
Messages
82
Location
New York, NY
Okay, From my readings on CPF I understand that white LED's don't output much, if any, infrared light. So I'm wondering why on the Surefire L4 page they are marketing the F03 Infrared Filter as an accessory. Is my understanding of white LED's and infrared askew, or did a marketing guy put together the page?
 
The_LED_Museum

The_LED_Museum

*Retired*
Joined
Aug 12, 2000
Messages
19,414
Location
Federal Way WA. USA
Re: Expalin to me?

I think somebody was an egg roll short of a poo poo platter if they thought an IR filter would be any good with an L4.

IR filters ought to work great for an incandescent, but very, very poorly for a visible color or UV LED.
 
IsaacHayes

IsaacHayes

Flashlight Enthusiast
Joined
Jan 30, 2003
Messages
5,876
Location
Missouri
Re: Expalin to me?

yeah, the one thing LED's don't emit is heat from their beam. Heat from the beam is infared energy.
 
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