Hello, I have not been on here in a long time or done anything with my lights.(house has takin all the money and time) I had a message from ebay last night that there was a new listing for a Uniquefire UF-T20 OSRAM Infrared IR 940nm Night Vision Zoom LED Flashlight. Has anyone experienced one yet?
Can you post or pm me the seller. I am looking for ir flashlight. Thanks.
I know not much about this, but if I remember well, for Night vision with camera's 850nm works better than 940nm. Anyone know better than me?
Yes i want to know too about IR LED.
Between 850nm and 940nm which one is the best for night vision or camera.
From explanation from this site
940nm is invisible for human eyes
850nm is also completely invisible, but 850nm leds produce some slightly visible red in the flanks of the output spectrum, nothing problematic, a faint glow if you look straight into the led, it can not illuminate anything. Btw, that is not a very accurate text, what they tell is just a bit beside what is really going on ;-)
I see.
I’ve seen several zoomie light with IR light with 850nm and 940nm spectrum on sale at aliexpress,maybe i should take each of them?
What do you think djozz?how about looking for a deal for dual IR LED like you did for the dual uv light?
:bigsmile:
Fun idea 
. It would even be more useless to me than the double UV one but that has not stopped me before: at least usefulness does not get in the way of the fun :bigsmile:
But seriously, for real expertise on IR flashlights the ones-with-the-guns among us should be consulted: mitko, illuminarium ejaculatum, n10sivern and more.
I went ahead and offered 25 bucks and they excepted my offer. I have 2 of these lights and love them. I have one stock and the other I mod to a 3 mode instead of 5. This one comes as a 3 mode,low,med,high.
A bit worrying is that the Osram name only appears in the item title, nothing about the brand or specific led partnr. in the description or on the pictures...
Over here, jackals and foxes learned somehow to see 850nm wavelenght, so its useless atm, 940 on the other hand still works, most of nowadays 2 and up generation scopes works best with 940 nm
Plus, something VERY VERY important
Those aliexpress and ebay “wanna be ” osram flashlights too often are a total garbage, with an unknown brand emitter
And even if it is an Osram emitter one , especialy if hunting one should change the flashlight driver right in away- those usualy comes with 1-2 mode drivers that have very bad flicker/PWM, and animals can see that, especialy predatory beasts
A modded 105c/or simillar is the best here, of course on an alu pcb that Osram emitter shoudlnt be pushed above 1.2 amps
If they can see 850nm now then they could always see it. It may have just been dim to their eyes and not something that spooked them… until they learned 850 is often followed by gunshots.
I have read that animals can see 850nm and unable to see 940nm. 850nm will reach out much further than 940nm.
im looking at build up some t20’s with osram 940nm LED’s. any tips? drivers? id like to have just 1 mode, high and tubro.
I bought a Uniquefire T20 with what they say has an OSRAM 940nm in it. I don’t have anything in 940nm to compare it with but I am very pleased with the results. I do have other T20’s and it is built the same and zooms nicely. I have only used it on paper targets out to 25yrds so far but have shined it on trees out to 100yrds and I was able to identify each branch and leaves. I was able to get it for 30 bucks with shipping. http://www.ebay.com/itm/Uniquefire-UF-T20-OSRAM-Infrared-IR-940nm-Night-Vision-Zoom-LED-Flashlight-NEU-/121776314810?hash=item1c5a6f19ba:g:Jf4AAOSwNgxWDjQj
You are absolutely right. 850 is better for night vision cameras:
LOL……If you noticed the pic I posted of my NV it is from Roland’s youtube the 1.0 I believe. Yes 850nm is better for cameras and will light objects up at much longer ranges but also will spook some animals. 940nm is a much better wave length to use for hunting but you lose distance. I am just learning this stuff and it is a hand full to swallow. I am using NV on an airgun and my limit is 100yrds on small game and 50yrds is pushing it for a yote so the 940nm is perfect for me.
I LAUGHED OUT LOUD WHAT THE F*CK HAHAHAHAAA!!!1111
Phew, back to topic, thanks for reviving and starting these threads, it looks like super cheap night vision is something I could build myself :D!
why I can played the video