850nm vs. 940nm infrared illuminators demonstration.

940nm infrared LEDs are virtually invisible to the naked eye. 850nm LED
produces a visible red glow but will illuminate stronger than a 940nm LED of
equal power.

[@billybutcher9912]

This answered my question about "visible" IR light. Thanks for posting..!!

[@wibble1999]

fantastic. Massively helpful. thank you my friend

[@mickcarson8504]

The 940nm has a more evenly distributed light and yes, it is also brighter than the 850nm. I think you should check your video and see which is brighter. I would rather have the 940nm IR in my cameras than the 850nm to keep them away and hidden from preying night owls (vandals, intruders). The 940nm doesn't attract flying insects than the 850nm which pull insects towards the camera like magnets, resulting in constant fake alarm and sleepless nights.

[@cahoc99]

hi what kind of camera to see vision night ??

[@closed-channel]

Yes same what camera are you using? Mine almost doesn't pick up the 940nm

[@koningklootzak7788]

Incorrect. 850nm is brighter.

[@diodedoode]

Hello, @cahoc99. A night vision camera has no infrared filter inside the camera lens, whereas normal cameras like on an iPhone has a filter so the image looks the same as the naked eye.

[@lifewithbreion1392]

Great vid... needed it, thanks

[@mikeshipley6158]

Thank you. Your video is very informative. I'm definitely buying a 940nm based on your video.

[@engjds]

Err....he told you the 850nm is brighter, just the camera adjusted exposure!

[@pbcb561]

That answered my question "what's the difference between 850nm v 940nm?". Thanks!

[@Heywoodthepeckerwood]

About 90nm

[@litterlyanything7915]

this video was very helpful thanks

[@androidera1858]

thank you.

[@GoWokeGoBroke2023]

Excellent review

[@hamitinan6422]

so so so thanks great. it worked for me a lot

[@ludr2225]

where did you buy that 940 led?

[@samsen201]

Good comparison. A question. Can you condense the beam of these chips, using a lens?

[@usbtower4358]

Yes, it could be done

[@alhwaity2]

Thank you

[@jpdesroc]

What is the part number of your 940nm flood bulb ? 120vac uses ? And who sells it ? Thanks !

[@kasperasperdgb2723]

can you please make demonstration with 730 nm or 740nm? thanks

[@sergiosecreto3189]

hello what is the camera modell you tested them? I think it also depends a lot on the camera. or am I wrong? I have already seen cameras that could see perfectly the 940 too but of course for the human eyes it was invisible.

[@vexelite77]

I appreciate the video

[@fernandocalabro86]

Good evening. Sorry for the inconvenience. I ask you a question. I need a powerful infrared led system so that when placing it next to a written plate, and I need that when someone takes a photo (during the day) of that plate, the photo appears "burned" or at least it is not understood what it has written. Is there any led with which I can achieve that? What do you recommend? The important thing is the clarification that is that it has to work also during the day (not only at night). Thank you very much and sorry for the inconvenience.

[@hamitinan6422]

Light the plate with and shoot a film on the plate. The IR lights from the cameras will be stuck in the filter and will be invisible ;)

[@matthewlewis-zw3tf]

All depends on your digital sensor, what wavelength you need.

[@mostafakabbaa9081]

Dear If you made a 3000nm camera, could it penetrate the dirt

[@federiko8397]

Hi USBTower, Thank you very much for this video. I tryed to build a infrared camera and I bought a 940nm 18 led board but I can't see nothing with my camera, phone or webcam. In your video the bulb works very well and you have a "white" contrast, not Violet or blue. Please can you help me for to buy your bulb? Thanks

[@usbtower5499]

Sorry for the delay answering. When your camera is in the night vision mode, you should not see any color. The fact that you mention blue or violet, tells me that your camera is probubly in the day time mode with IR filter on, so the problem might not be with your illumination but rather with the camera.

[@digibluh]

they probably have an IR Filter so you would see nothing.....

[@Steve-Cross]

The advantage of a 940nm IR, is that it is less visible to the naked eye. This makes it much better, especially if you need to be covert. Night Hunting etc.

[@26071990]

Hello, can you tell me please what flashlight do you use in the video and from where can i buy one ?

[@usbtower4358]

There was no flashlight. The bulbs you see are all that has been used. They are available on eBay

[@26071990]

@@usbtower4358 ok ☺ in this case what flashlight with 940 nm bulb you reccommend?

[@26071990]

ok ☺ in this case what flashlight with 940 nm bulb you recommend?

[@engjds]

What is the power of those torches?

[@Manosspan1]

Hello, I have tried using 20pcs of 940nm led's but there are lighting only for 1-3 meters. do you know why? how many amps and voltage do they need? thank you

[@usbtower5499]

There are many different 940nm LEDs available out there. They all have different specs. All LEDs (light emitting diodes) work on constant current rather than on constant voltage, usually you would use an appropriate constant current power supply. Unless you already familiar with the issue, you may want to Google it.

[@Manosspan1]

Thank you very much for your reply. I used a ac to dc power supply like this one www.ubbcentral.com/store/item/img-large/eu-9v-ac-dc-power-supply-adaptor-plug-pack-for-super-nintendo-snes-console-new_221797783699.jpg What characteristics should I look , in order to find 940 leds like these in the video

[@usbtower5499]

What you see in the video is a bulb, that is a complete system LEDs, power supply, heat-sink and it can be used in most light fixtures that use standard e26/27 light bulb. We sell them on eBay, Amazon and our website. Unfortunately instructions on putting one together involves more than a few lines of text.

[@Ibanez7400]

If you look up tactical flash light. You will notice you can increase the intensity by using magnifying lenses to zoom or widen the the range. However this also depends on your power output. If rated you may be able to change your circuit parallel vrs series to increase the intensity of the LED you are using.

[@CoolShot906]

May I know the camera you use.. And if I use 50 940nm ir led,how much voltage and amp I need?thanks

[@tocadisco4166]

Ir LEds typically have a forward voltage of 1.5V, so if you want to use 50 of them connected in series, ou simply need to multiply 1.5V x 50 leds = 75 volts. The current will depend on the type of led. Small 5mm leds will require about 25mA. Instead of using theses 5mm leds, I recommend you to test some larger 3W power leds. Each one will require 700mA and 1.5 volt to work.

[@CoolShot906]

Toca Disco well,thanks!

[@usbtower4358]

I would add that the LEDs require constant current rather than constant voltage power and if you are experimenting with a regular constant voltage power supply, I would connect a small resistor in series.

[@usbtower4358]

The camera is a generic Chinese Cam from eBay. The stamp on it reads NETWORK CAMERA Model No NC223W-IR

[@miguelangelsimonfernandez5498]

@@usbtower4358 Actually they don't . They are more efficient in pulse mode and a higher voltage than nominal DC voltage. You would need a pulsing (forward ) current at a frequency higher than your camera shutter frequency. Using direct DC depletes your batteries fast.

[@STAY-GOLD-VINYL]

Is it possible to make this portable?? Can u give me a run down on how I could make this portable?

[@usbtower4358]

These bulbs can be made to work with a DC power source. It would however require a different internal power supply. Doing it would require professional skills though. If you really need one I could make one for you, if you look me up on our website or e bay.

[@imadjawad4408]

Great thanks

[@pablowin07]

Which is better OSRAM OSLON - INFRARED 860nm OR INFRARED 940nm for one bisor ATN ???

[@drefhill]

They are different, it depend what you want to do with them.

[@Subgunman]

The military uses the 920 to 940 nm illuminators since it provides better lighting and it won't give your position away to those using conventional optics searching for that telltale pink glow from the 840 equipment.

[@brokenpencil57]

Beware if the IR light frequency (850 or 940nm) doesn't match your camera sensor frequency you will have much less intensity (half??) resulting in significant loss of range.

[@sergiosecreto3189]

so yes exactly, that's what I have written too. the big question is the sensor of the camera. but I also think it is very diffocult so decide cause only later and via testing you can see the result

[@closed-channel]

​@@sergiosecreto3189An idea of which camera to use for the 940nm

[@hippopotamusanonymous1580]

Where can I buy these bulbs?

[@radharamanan5003]

nice

[@Fortun.a_Major]

940 is good for invisible spy cam

[@tocadisco4166]

The led was 3w or 5w? How many leds?

[@usbtower4358]

The LEDs are 3w and there were 3 of them. Both 940 and 850 nm

[@SodiumSyndicate]

IR is used for stealth. It makes ZERO sense to use 850nm as it glows really well to be spotted easily.

[@artur4945]

esto es una de las caracteristicas que no explican en las camaras de vigilanci que deberian de decir y no dicen

[@prajapatbecharbhai1843]

Good

[@wtfvids3472]

That is strange, humans are not supposed to see 850nm in fact anything over 760... Do you know why this light can be seen?

[@usbtower4358]

If it only produced 850 we would in fact not be able to see it, but no LED is perfect, and alongside 850 it emits some light in the visible range. The 940 LEDs produce light mostly in the 940 nm range and a lot less visible light, if you load them to capacity, or overload them they too will produce some visible light, a lot less than the 850s though.

[@5thDragonDreamCaster]

The boundary between red and infrared is not a sharp cut-off. Red slowly fades into infrared as the eye's response drops off. From 700-800nm there is a transition zone called far-red which is somewhat visible, but takes on the properties the near-infrared. With your own eyes, you can see black fabrics change to red, while any black marker writing or black plastic stays black. kzbin.info/www/bejne/iKHYfoOCfc5_qpY

[@Fortun.a_Major]

940 nm , no glow is good then..

[@RynaxAlien]

With A7S or X27 you wouldn't need even IR lighting.

[@StamZO]

who else was expecting a ghost?

[@ZOMBIEEZ]

u

[@NK-yx7zn]

So is it a myth that we can’t see above 800nm lights ?