Art and Technology are Friends

R48 and Li-Ion Charger

R48 comes with a non-rechargeable battery (CR2450) and a black cord (lanyard) to hang around the neck. The battery lasts for about 7-8 hours in continuous run.

There are also rechargeable battery (LIR2450) and the charger available. With those, you won’t need to keep buying batteries.
The charger is very compact and plugs right into an USB port.

White LEDs look yellow when they are not lit. Other colors (red, green, and blue) look like the photo above.


  • Available with 4 different color LEDs: Red, Green, Blue, and White.
  • Each R48 is fully assembled, and comes with a non-rechargeable battery (CR2450, easily replaceable).
  • Battery will typically last about 7-8 hours continuously.
  • Also comes with black cord (lanyard) to hang R48 around your neck.
  • 25 beautiful animation patterns preprogrammed.
  • “Demo” mode automatically runs though all animation patterns – changes every minute. (Activated by holding the button at the startup.)
  • Rechargeable battery (LIR2450) is also available as an option. This recommended option lights the LEDs brighter, as it has higher voltage.
  • The charger for the above is also available.
  • Dimension: 1.9 inch diameter, 0.4 inch thick (including the battery)

In-stock and shipping now!

11 Responses

  1. frank

    Looks like you ripped off this design.

    Exact same circuit, same shape, and same function. Seems to me you accused someone else last year of doing the same thing.

    hmmmmmmm. . . . . . .

    November 9, 2013 at 5:46 pm

  2. thanos

    There charging circuit;

    September 30, 2013 at 5:39 pm

  3. thanos

    Hi,for battery charging used MCP73832T?

    September 30, 2013 at 5:19 pm

    • It uses MCP73831, but MCP73832 does the same thing.

      September 30, 2013 at 5:26 pm

      • frank

        actually it doesn’t. the MCP73832 is open-drain output on the STATUS port. It would not give you the capability to have two LEDs for status, only one.

        November 9, 2013 at 5:34 pm

  4. amy chiao

    waiting for the green led one to come out. When do you think that’ll be in stock?

    August 7, 2013 at 1:19 pm

    • The green ones should be ready in 2 weeks. Thanks for waiting!


      August 7, 2013 at 1:35 pm

    • Sorry it took longer, but all colors of R48 are now available!


      September 12, 2013 at 3:41 pm

  5. Rick Lay

    Will it be available as a kit? That’s half of the fun!

    July 19, 2013 at 10:28 am

    • There are no plans to release R48 as a kit. The reason being that it’s not very easy to assemble. However, I’m thinking of releasing A12 (12 full- color LEDs on the same size PCB) as a kit. I had a workshop assembling A12 and the everyone completed the task successfully.

      July 19, 2013 at 5:30 pm

  6. Alan Esner

    Cool can’t wait to see it. Looks like it would be good for Burning Man.

    July 18, 2013 at 10:11 pm

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