New for 2023

This blinking light circuit is a basic circuit that is suitable for those who are interested in
learning and knowledge of electronics related to multi-purpose ICs that are commonly used
No.555, both LEDs will turn on and off alternately, which the user can adjust the speed of
blinking. Can be used for Model Railroad Crossing Lights if built with FK1903 kit and using red LEDs
in place of the standard red and green supplied with kit.

Technical data
- Power supply : 4.5-12VDC.
- Electric current consumption : 22mA (max.) @ 12VDC.
- Flash frequency is adjustable with a trimpot.

• There is an OUT point that is used to connect an external single output which can supply a
  maximum current of 50 mA. Output will turn on and off and can be used for a single or multiple
  LEDs on a single on off circuit.  
  PCB dimension : 1.29 in. x 1.40 in.

Note: Other LEDs can be used with this kit, but if ordering the FA1903, it comes with the red & green installed only. If you purchase it as a kit you can purchase other color and size LEDs.