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Cosplay Tip 32 - LED Lights

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These are tips my girlfriend Nobodyyyyy and I picked up when working on our cosplays. We try to give back to the community, and post tips every Tuesday on our Facebook!

If this tip helped you with your work, send me a picture and I'll post it here in the description!

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Comments11
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SaiyukiLover666's avatar
OMG thats brilliant I've been scoring the internet trying to find a cheap way to add light rope to my cosplay but this will work perfectly thats amazing thank you soooooo much!!!!!
toberkitty's avatar
It's not a problem to make these without resistors, if it's just a battery stuck between the legs of one LED. I should know, I've made them! They're known as "throwies". They will stay lit for at least a couple of days too, continuously.
Bllacksheep's avatar
Thanks for sharing your experience, toberkitty. I have used this method before with success but I haven't tested how long they will last, and I didn't know there was a name for them! With a quick google search, I found a whole bunch of fun projects people have done with 'throwies' - it gives me some ideas!
Kai-ni's avatar
Ra-Ra-s-tear is right, unless the LED has the correct resistor, you will damage it pretty fast (they won't last long) and it has the potential to be dangerous. I would not recommend this :c
Ra-Ra-s-tear's avatar
hmm I guess it would be difficult to insulate everything properly and too many batteries connected together is definitely not a good idea. But if the project is on a small scale and operated with caution there shouldn't be too much of a problem xD
Bllacksheep's avatar
I agree, Ra-Ra-s-tear. It is a very small project, and while there may be a potential for the bulb to burn out quicker than it would if it were connected to a proper circuit - there is no potential for danger. The LEDs that I recommend in this tip are small, only 2.4 volts - and such a low voltage isn't dangerous. Though I do want to add a note about the voltage. The battery I would recommend to anyone reading this is a single 3 volt disc battery. Though the 3 volt battery is slightly higher than the voltage of the LED, this will not cause a problem. Using any battery with a higher voltage will burn out the LED very quickly. I hope this helps, and thank you to Kai-ni and Ra-Ra-s-tear for your comments!
Ra-Ra-s-tear's avatar
um technically you should put a resistor of about 100ohm in series to every LED like that (unless you get things like the big fat ones that already have a resistor connected inside.)
and it's quite easy to add a switch to a circuit!
- from a 3rd year Electrical Engineering student (:
Bllacksheep's avatar
Thanks! Yeah, this tip is no masterpiece of electrical engineering. And I would urge anyone reading this to do it the right way if you know how to solder. You can create a simple circuit, add a switch, and add a resistor - something I wouldn't have know to do, so I appreciate the info. This tip is meant for people who don't know how to solder and don't know much about electricity, and to give a quick and effortless solution for adding lights to their costumes. But as RaRasTear suggests, keep in mind that this simple rig is impermanent and isn't meant to be a durable long-term solution.
Ra-Ra-s-tear's avatar
no problem! I'm no expert either (at least compared to the professors and seniors) but glad I can provide some suggestions!
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