Power your 3V LEDs with this "coin-style" battery holder. Holds one CR2032 battery. Includes a built-in switch on the battery wire.
This coin cell holder switch unit will run from 1 - 10 LEDs safely and brightly. In manufacturer's 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.
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.