a coin cell holder suitable for the common cr2032 battery
a convenient push-on push-off button switch to turn your item on and off.
Add some cr2032 batteries to your order along with the coin cell holder
and you will be ready to run as soon as this package arrives.
This coin cell holder switch unit will run from 1 - 10 LEDs safely and brightly. 3 Volt LEDs for use with this coin cell holder
***With this unit, solid LEDs need to be separate from flash or flicker LEDs. Give flash or flicker groups their own coin cell.***
In our tests, 6 lights lasted over 12 hours on one battery. By 12 hours they were noticeably dimmer. A test of the battery at 12 hours showed the voltage was down from 3.0 to 2.6 volts. The lights continued to stay on at a nice level for several additional hours before another battery was needed.
How we connect lights to this unit:
As you can see from this picture, the 3V battery slips right into the holder. And the LEDs are connected red wire to red lead. And black-to-black. Protect connections with tape or shrink tube.
Holder/Switch Dimensions: The red wire is 8 inches long. The black wire is about 4 inches on either side of the switch.
The coin cell holder is .24 inches thick and .9 inches across at the widest point.
You can clip the plastic "wings" to save 0.1 inch on the width if space is at a premium!
You can find more cr2032 batteries at stores such as Walgreens, Walmart, other drug stores, local grocery stores. Or just buy more here!