Y.A. LED Flashlight

So I titled this Y.A LED Flashlight(Yet another LED Flashlight). This was my first time actually using a PC-Board in a project, besides in kits. I am using 5 Blue LEDs, and 4 Green LEDs, making a cool light when turned on. So, just follow along and I hope you can do this properly. Please bear with me, as my digital camera's quality is horrible.

Thanks
Here we go!

Step 1 Materials

Here is what you need:
Soldering Iron
Thin Solder
(1)Battery Clip
(9)LEDs *It is up to you how many you want to use*
(1)3 Volt Power Source
(1)PC-Board from Radioshack

Patience and anger management (both of which I do no have).

Comments

[Thegame995]

Please upload the video again, Youtube says you have removed it.

[codongolev]

pc board are so helpful...

[fastback570]

Is the hole pattern in these project boards standard? I want to do projects with Flux Leds and was wondering.

[Derin]

they are

[T3h_Muffinator]

I don't understand what constitutes a negative rating on this... could someone explain why they gave it a negative rating?

[heavy.metal.nguyen]

He should have made it a parallel circuit not a series circuit?

[killrsheep]

I wouldnt go as far as negative rating this but i for one cant help but to be annoyed about 80% of the times i see a LED project on instructables... for some reason people dont care about how and why the project works as long as the LED lights up... only the ones who really know about electronics use Resistors with leds, and understand why it is necessary, and that Leds are our friends and not our Slaves (not to say B**ches cuz thats how everyone treats em) Anyway, thats not meant to bash the project, it looks cool, and those LEDS are most likely to survive bcuz the extra voltage they are getting isnt much, and the inner resistance of the batteries is also protecting them, (horray! for perfect ideal batteries dont exist)

[codongolev]

I just care if the led lights up.... but then again, I bother to do the math to figure out if it'll light up a few months/years from now, too.

and I prefer to not use a resistor, if need be. I mean, if you've got a 9 volt battery, why use an led and resistor if you can have three times the light without having to scrounge up the right resistor?

[Zyzzyan]

There is not such things as LED rights. P(eople) for the E(thical) T(reatment) of LEDs?

[T3h_Muffinator]

LEDs are your friends, but I don't get in trouble when I chew on them!

[Brennn10]

Muff, you chew on LEDs? That is dedication!

[T3h_Muffinator]

They're sooo tasty! Probably not too good for you, though ;) p.s. Check out the forums, my newest topic ;)

[killrsheep]

Lol , its been a while..., sorry about the rant, i c that you guys actually thought this through. I checked your POV topic, it looks really cool!, too bad they don't teach me much about electronics at school... only electric stuff, (110VAC and beyond), id like to do some projects that involve programming :)

[T3h_Muffinator]

mm!!

[Brennn10]

I love that idea! Hit me up with a PM, with parent permission I might be able to sent out some spare parts that I have not the clue to do with.

[Brennn10]

Well since it is only using 3Volts, the LEDs are getting minimal harm. If I was using 9V, then yes resistors would be highly reommended. Then again, I am not using my LEDs as my biatch.

[technopenguin]

What I say is that this project is great for introducing beginners to electronics, although you need to know how to solder.

[zachninme]

Well, this is a great project to learn.

[T3h_Muffinator]

By the way, the LEDs don't really need a resistor because they kind of are resistors by themselves , especially when you're running 9 of them off of 2 AA's If Nick was running them off of anything larger than 3V, I would have suggested to use a resistor, but in this case it doesn't really matter.

[Brennn10]

I see what you are saying. I didn't use a resistor because I didn't think that it was actually needed. I would DEFINITELY use a resistor if I knew my LEDs were going to waste. I agree that some people just want the lights to light up, but I like my LEDs to light up, but also have quality. -Brennn10

[killrsheep]

and im actually rating a plus on this cuz i want to see more LED projects here...

[Brennn10]

Thats exactly what I was wondering. It is 0 now, but a few days ago it was -1.

[James (pseudo-geek)]

probably haters (aka trolls)

[chrisrock410]

thank you! got it working now :)

[Brennn10]

No Problem, glad you got it working!

[chrisrock410]

I'm a little confused on the soldering part...could you explain?

[Brennn10]

So basically, you are connecting each (+) lead of each LED with solder, and each (-) LED with solder, making sure that they don't touch. With your resistor, solder it to the (-) side of the leads if you are using a nine-volt.

[chrisrock410]

Would this work with a nine volt battery?

[Brennn10]

Yes, but you would need to add a resistor to the circuit.

[piper1234]

for beginners is ok an interesting try for "professionals" (seems to be a bunch of them around haha) maybe is boring (just don't watch it) :P for the let-led's-live-longer cruzaders (haha can't belive it but they exist) stop watching and go and get an analysis :P for the Einstein heir ones just don't do it try to explain why the light emitted is relative hahaha for Brennan try to practice your soldering ; ) (btw the live music detail in the vid is very original)

[T3h_Muffinator]

By the way, nice instructable Brennn! ;)

[Brennn10]

Thanks! Thanks for helping me too! It works great! Without your diagram, I would be a chicken with its head cut off.

[lemonie]

I would have done it like this, bending the legs of the LEDs to connect them together.

[pfmia]

I think you should put some resitors in series with your LED just to limit the current that could burn out your diodes

[T3h_Muffinator]

The LEDs actually act as very small resistors, so he should be fine ;) However, the batteries will burn out pretty fast.

[Brennn10]

Yea, I could easily do that. I just decided not to, because of the small amount of voltage.

[lemonie]

How much current does this suck? Can't be more than a fillament bulb of equivalent brightness, but I suppose you'd want to use rechargeables? L

[spoulson]

I don't understand what makes this a flashlight.

[ich bin ein pyro]

if you look at some special flashlights (not while thier on!) you can see that they have 4-5 little but powerful LEDs and i think hes trying to replicate this pyro-

[Brennn10]

What doesn't make it a flashlight?