Quick answer is probably not. Why? The numbers don't add up:

> ...3,2V/20mA for the 100 LEDs...

From [here][1] we find this comment:

> Most common LED’s require a forward operating voltage of between
> approximately 1.2 to 3.6 volts with a forward current rating of about
> 10 to 30 mA, with 12 to 20 mA being the most common range.

(Actually there are [low current LED on the market][2] now that only need about 3mA to operate. Let us assume this is what you have for our calculations.)

So, given the above is true, and if your string of LEDs were all in parallel and had average specifications, we would add up the currents:

 Current: 100 x 3mA = 300mA or 0.3 Amps
 Voltage: About 2 Volts. 

(Note: When designing with LED you should always refer to that LED's specification. The above 2 Volts is only a guess.)

So, even if your LEDs are of the low current type, you can see a string of 100 such LED in parallel exceeds the initial expected current for the entire string of 100 LEDs.






 [1]: https://www.electronics-tutorials.ws/diode/diode_8.html
 [2]: https://www.digikey.com/en/product-highlight/s/sunled/ultra-low-current-leds