Fireflys Wheel Lights – For Wheels or Other Inventions

fireflys-led-lights-with-packagingWhile ordering some parts for my Large Hexapod on Amazon, I came upon these little lights that attach to your bicycle or automobile valve stem.  They were priced at $1.63 at this writing, and were hard to pass up given my interest in light painting (See my CNC light painting article) as well as mountain biking.

I wasn’t sure what to expect out of these devices, given the insanely low price for a set of 2, but according to the packaging that they came in they are:

  • Made of high quality material
  • Different color for option
  • The light will be off when the vehicle stops,onwhen it runs, and flash when you’re driving at night
  • Bring more color to your car
  • Bring more enjoyment to your drive

That’s what it said at least (in all caps).  Actually this isn’t too bad for a Chinese translation.  Although most of the points are debatable at best, the interesting feature is that these lights do indeed turn off when not in use.  After taking them apart, there seems to be some component inside that is activated with acceleration, but I’m not sure exactly how it works.  If continuous light was needed (such as for throwie use), it seems like it could be bypassed.  I actually haven’t put them on my car or bike, but when shaken as in the video after the “read more” they turned on then immediately shut off when still.

After using this for a while, I came up with an idea that I’ll explain in a later post, briefly pictured in one of the photos above.  Although originally I thought they would be put on a bike, then possibly used for throwies (see my most “advanced” throwie design), I eventually decided to make nunchucks out of them.  This should make for some interesting light paintings, as well as some general use swinging them around for entertainment.  Check out the video below of these “firefly” LED lights being manually turned on and off by shaking.


  1. How to Make LED light nunchuck with "Fireflys" wheel lights - pingback on August 26, 2012 at 1:50 pm
  2. An Absolute beginner's Guide to Light Painting - pingback on September 18, 2012 at 12:34 pm
  3. Light painting with Fireflys LED wheel lights - pingback on September 25, 2012 at 10:14 am

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