This is kind of weird but I found this large IR LED which requires 1.6 V and 14 A. I don't intend to buy it because it would be difficult to power (and because the numbers don't ad up to the 50 W it claims to be) but I just wondered how would anyone even go about providing 14 A at 1.6 V?

https://www.aliexpress.com/item/20W...8.0&pvid=62b687d7-3a02-44d3-a291-fed5d8cda66a

 

That COB has 50 LEDs, and it's actually rated at 7A continuous. That would run each chip at 140mA. This is not completely crazy, but it is much higher than a long life would warrant.

The forward voltage simply must be wrong. If every one of those chips were in parallel, the lowest it could be is the forward voltage of a single one, and I don't think 850nm LEDs have such a low forward voltage.

As far as supplying the voltage, which part of it are you confused about?

 

The max reverse current rating is also suspect. 70A ???

 

(some text removed for clarity) ...but I just wondered how would anyone even go about providing 14 A at 1.6 V?

Starting with a higher voltage, a buck converter, possibly inside a current regulation loop would be a good choice for supplying the 7 amps continuous.

 

I've come across many crazy listings before , text that bears no relation to the product (particularly Aliexpress) but your one takes the biscuit .... I think the person making it was out of their head .

Here's what I believe to be the same item from ebay ...
50W 850nm Infrared IR High Power LED Bead chip for Light Bulb Lamp 15-20v 1750mA

The picture is identical to your link ,,, 50W , so it has 5 lines of leds ,,, each line has 10 leds in series.