S-3211A LED Flashing Module for Sale Displays
1. PCB Size: 42x45mm
2. 5mm Diameter LED
3. 3PCS 2032 button cells can work at least 6months.
4. Adhesive sticker on the back

More information:
A. One LED/two LED or more LEDs
B. LED Color can be selected.
C. It can be Used by many promotional products, such as Postcard, Greeting Card, Toys, sale displays etc.
D. PCB Can be designed according to your requirement.