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What is the difference between an infrared flashlight and a LED
What is the difference between an infrared flashlight and a LED
How do infrared light bulbs work? - Quora
How does an IR flashlight work? - Quora
Why would you buy LED flashlights? Where would you get it? - Quora
What is the difference between a flashlight and a fleshlight? - Quora
I can see purple light coming from my tablet's camera, does it
Why is only infrared light used in proximity sensors and not other
What is the difference between a normal LED and an IR LED? - Quora
What is the difference between an IR LED, a photo diode and an IR
Why is only infrared light used in proximity sensors and not other