Casios Red Led question

[jbtm]

I just want to make sure I'm doing everything correctly so I don't kill my LED

First, pins 3-5 and 6-8 are the power cables correct? I group it 3 and 3 for + and - correct?

What's the nominal voltage I want to run this at? I see people say 5v, yet I see the datasheet say 2.7v or so.

I wanted to run it possibly on my 120v 30A variac as a test. This way I have a good voltage to start it on, in that 0-5v range.

What size resistor should I am for in ohms? I saw people said you can wind your own. I'll do this. But what ohms?

I apologize for making a new thread, I just want to make sure if stuff so I don't risk an LED. Plus threads like these help others.

Thanks.

 

[anselm]

You mean the Phlatlight?
Personally, I don't know, but look what other members have done with it:
http://laserpointerforums.com/f66/phlatlight-red-led-casio-projector-burns-stuff-52904.html
http://laserpointerforums.com/f42/phlatlight-12w-red-led-flashlight-61010.html
http://laserpointerforums.com/f66/possible-first-phatlight-torch-corrected-2nd-61525.html