Wiring up LED's? Amateur Question 2

[plangetee]

I have a question with regards to LED's. I have a power supply that supplies 3, 41/2, 6, 71/2, 9 and 12VDC (nominal). Materials I'm using:
Aforementioned power supply
Circuit board
~80 Red LED's, "high" intensity (

http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_333526_-1

)
Connecting wires, soldering gun, etc etc

Assuming a voltage drop of 1.9V across each diode
How would I light 80 LED's if the combined voltage drop in SERIES is 80*1.9V?
All LED's will always be on when the power source is on. (The LED's will not be on-off intermittently or controlled by an IC)
Advice?
Thanks

http://politicalplangetis.blogspot.com/

 

[LionelHutz]

Isn't this thread a mess? It should almost be flagged as a hobbiest post. It should be obvious to any electrical engineer or even an electronics technician that you'd put 5 or 6 LEDs in series combined with a series resistor connected to the 12V output.

 

[plangetee]

@LionelHutz Yes I agree on both points you made. Lol.
Thanks for everyone's input. No I am not going to use 120VAC. I am using a 12VDC NOMINAL supply and it is by no means accurate - I'm buying the thing for $25. BUT for my purposes it is fine.
No more comments needed here. This thread can be closed. Thanks

http://politicalplangetis.blogspot.com/