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So I've started on a project and might be in a bit over my head. I'm looking for anyone who has some knowledge of wiring LEDs into a circuit. I'm attempting to light up a Monolith but have found that with just the standard 3v. of power from my two AAA batteries, they're just not pumping out the light that I'm happy with.
I know there's a way to add transistors/transformers, etc to increase the voltage, but I'd also have to create an oscillator in there so I don't burn out the LEDs, etc etc. (I can't help but feel like I'm back in 9th grade science!)
As you can see, I've just about tapped my knowledge on this topic. If you have a working skill base on a project like this, could you let me know? I'm just trying to make the LEDs brighter without adding more batteries.
Well, I know that pumping up the voltage, without upping the LEDs, will only result in little blackened LEDs.
What you need to do is explore LEDs. Theres a 'stat', in addition to "3v, 20mA", which is mcd: luminosity-or brightness: where 1 lum. is a candle flame.. or something like that
The blue LED I used in my shield effect were '2600mcd', and are very very bright. all for 3v in AAAs. BRB, going to do some visual pics, showing off this powerhouse LED, as visual displays are far more convincing.
OK, 2 leds, and the AAAs that will Power them.
Here we have the two LEDs. The green one is a 3v one I got in a mixed bag of many generic LEDs, with no stats, other than 3v, 20mA (20 milliamps max or itll burn out), the clear one is the super blue one, and the package on top is its package. So, thats the cool part: two identical looking LEDs, and whooo brace yourself for the difference!!
OK, so this is the green one, and is about as lackluster as the ones you sound like you have. Its ho-hum, indeed. As I KNOW your eyes have already locked onto the blinding picture below, I will just not bother talking about this pic anymore
Same exact power supply, same camera position and view, same ambient light settings... just to ensure that I didnt manipulate the results.
So, after this visual display, that should solve your problem, I think. You need to find green LEDs that are of sufficient luminosity. (the blue one was 2600, remember). I reccomend Internet mail-order, because I was simply lucky to find these in the Radio Shack parts bins. And blue was suitable for my Tau sorta stuff.
IF you wanna go NUTS, and you know that your monolith is big enough (I think), There are 12v LEDs out there, that are used in heavy duty stuff... like highway billboards, or maybe stadium tv screens.. You may need to wrap them in aluminium foil to protect your plastic. Something like this could light up an entire room with a nice sickly green glow. What to use for batteries?? well, there are those 'lantern' batteries, big square ones that you put in camping lanterns... yaknow? those suckers are 12v.
An elementary particle of the lepton family, having a mass about 3,550 times that of the electron, a negative electric charge, and a mean lifetime of 3 x 10-13 seconds in close combat.
I've been considering this with my Chaos army. My idea was to put red LEDs inside the transports, and maybe try a couple more things on my Land Raider.
The pictures definetly helped Calaban. Any idea where a good place to order LED's online is?
Half Gods are worshiped with Wine and Flowers. Real Gods are worshiped in Blood.
Blood for the Blood God! Beer for the Bronze Keg!
I guess this is just as good place as any. I want to do the same thing. Green LED inside a monolith hooked to a battery power source. But I want a simple switch to connect to it. You know the kind, you see them on the bottom of most of those toys or LED decorative angel things or whatever. Anyway, its a small black switch that is a rectangle about this actual size [____] with ridges on it that sits inside a slide about double it's size. To turn on or off you merely slide to the left or the right. Anyways, I'm somewhat electo-illiterate, I was wondering what it takes to run the led and leads, to the battery, to the switch and make it turn on and off. One of each of these will be placed inside a Necron Pylon and Monoliths as well. I know I could make it to where the switch was discrete as well as the batteries inside, with a panel to open to be able to change the batteries. I hope this post isn't confusing, I just really need help with it big time. Thanks.
Oh thank you so much, you don't know how googled out I am over THAT SWITCH!!! FREE AT LAST!!!
For the Greater Good....We suck blood....
Woulden't just wiring them in parallel instead of serial work? I.e. if you have 5 led's just run a set of wires for each LED from the battery. 5 off the positive to each led and then 5 back to negative.
I'm planning on wiring everything together in Parallel instead of series. With a 2.1 Volt drop over each LED, I'd need crazy batteries to power the whole thing.
And Calaban, thanks for the visual, it's exactly the problem I ran into. Interestingly enough, after a bit of snooping, I found out more detailed specs on the LEDs I'm using vs other ones available. The ones I bought have a lumen output of 640...gimpy to say the least. I found some online that are capable of 9000 lumen output!! (To put that in perspective, a standard 100 watt incandescent bulb creates about 1700 lumens.) I think the switch to the more powerful LED is a wise choice.
I think when I (someday) build a 2nd monolith I'll try to replicate what I saw someone do a while back. I think it was about a year ago on ebay I saw a monolith go for about $300. The selling point was how it was converted, naturally. What this guy did was add a 3" plasma globe where the green crystal is up top. The entire interior was pretty much taken up by the body and mounting system of the plasma ball, but it looked ridiculously great!
I figured I'd start with LEDs and work up to a plasma ball. I'll try to post some pics once its completed.
Thanks for all the help,