Energy Saving LED Flasher Kit

When the area is getting dark, LED will begin flashing periodically, that makes this circuit live longer.
It is suitable to use as a navigator lamp, on-off switch in the dark, or to be a caution lamp circuit for bicycle.

Technical Specifications:
Power supply : 3VDC. (CR2032 battery not included)
Duration of battery : 1 - 200 hour.
Frequency of flashing : 0.5 second.
PCB dimensions : 1.42 x 1.49 in.