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Discussion Starter #1
Hi,

First time posting so please be gentle.

is it possible to make a LED party light globe rope flicker. Im about to buy about 5 of these for a Circus themed halloween event and need them to flicker inconsistently.
www.bunnings.com.au/arlec-10-led-multi-colour-party-light-_p4351385

Ive found walkthroughs on how to make lamps flicker but cant find anything on how to make led lights flicker.

Any help would be great.

Thanks
 

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Sounds like you need something like this: http://www.chauvetlighting.com/basic-strobe-controller.html
There use to be a really cheap version called the Lighting FX box. I did a search for ya already and cant find them anywhere... guess they are either seasonal or they simply dont make them any more. I have 2 I use for different things... they are awesome (see pic below), just wish I could find ya one on the web...
 

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It looks like the light string is powered by a transformer; what's the output voltage on it? Is it AC or DC? The transformer certainly complicates the traditional methods of flickering a light, and since LEDs don't fade the way incandescents do, you're probably right that the traditional methods to flicker a light won't work here.

As to how you could flicker the LEDs, a lot depends on how exactly they're wired. Are you familiar with series and parallel wiring? Based on the description, it sounds like you've got five LEDs per globe, 10 globes on the string. An easy way to get a bunch of LEDs to flicker is to replace one LED in a series-wired string of them with a flicker LED, which forces all the rest to flicker as well. However, a lot of LED strings are at least partially wired in parallel to limit the loss if an LED goes bad, so this could be impractical for your particular string. If you can determine how it's wired, or post some detailed pictures of the string wires and the circuit boards holding the LEDs inside the globes, we might be able to move on from there.
 

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The problem with the effects boxes mentioned here is that they're all designed to have a mains power light plugged into the back. With that light string, you'd have to plug in the transformer, and I doubt the transformer would take well to the abuse, especially if it's an AC to DC converter.
 

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Maybe I've used my basic flicker light unit to flicker a LED ...I had to add a small light to it so it would pull enough current but that shouldn't be a problem with a string of lights. But I'm not 100% sure As you can see in the video the LED would not flicker till I added the small light. At the end of the video it shows a 9watt LED flicking without the added bulb

I sell them $14 each (shipped)...it just your basic flicker unit and there's probably 4 or 5 how to make on the forum and make it yourself for around $10-$15



https://www.youtube.com/watch?v=w_n1NGGphkQ
 

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That's looking good! A little lopsided, certainly :D, but the flicker frequency looks very realistic. Is it designed as a drop-in replacement for a real fluorescent tube, or as a stand-alone prop?

I've never tested it long term maybe I will after Halloween because I'm working on a LED flicker florescent Light. Been working on developing it for two years...

maybe this will be the year I find the time I finish it and test it .

https://www.youtube.com/watch?v=Dpyu-joFjik
 

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Stand alone. That is not a real florescent Bulb you can drop it on concert and it will not bust and as soon as I get around to finding my LEDS that I can fit into the unit so everything is enclosed I will be ready for testing. Right now everything is housed at the end of the light. This will be a unit that's plug and play...

if I ever get around finishing it. My probably is college football and the traveling I do following my school each week. Then college basketball starts up a couple weeks after Halloween and I travel to every game, home and away up till April.
 

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Discussion Starter #11
thanks so much for replies everyone.

decided to ditch the LED string lights and move to normal light globes.

im following this guide;
http://booityourself.blogspot.com.au/2010/09/flickering-fluttering-sputtering.html

but the photocell socket i bought has a delay of about 3 seconds before it turns on the lights. I cant find the photocell adapter used in guide
http://www.amazon.com/Plug-Lamp-Photocell-Watts-Maximum/dp/B000GARYIA/ref=pd_sxp_f_pt
except on ebay but they charging $49.74 (US) to send it down.

Has anyone tried this method and if yes, which adapter did they use which doesnt have a delay turning on?
 
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