The HK9922 train LED lighting kit is a fully assembled module designed to provide realistic lighting for model trains and locomotives. The controller is based on a PIC microcontroller, ensuring stable and reliable operation.
The kit includes a total of four LEDs arranged in a configuration typical for real railway lighting systems. A single white LED is used as the main headlight at the front of the locomotive. Additionally, two white LEDs are used as flashing front lights (ditch lights) to enhance realism.
For the last wagon, a flashing red LED is included to act as a rear end signal light. A push button allows the user to enable or disable the flashing front lights as desired.
The wide supply voltage range allows the module to be powered from various sources, including a standard battery, making it suitable for model railway layouts and RC applications.

Technical Specifications:
Operating principle: microcontroller-based LED lighting control.
Microcontroller: PIC.
Number of LEDs: 4.
LED configuration:
- Front headlight: 1x white LED,
- Front flashing lights: 2x white LEDs,
- Rear flashing light (last wagon): 1x red LED.
Flashing light control: push button (on / off).
Wire length: approximately 300 mm (12").
Supply voltage: 6 - 14 V DC.
Battery operation: supported (e.g. 9V battery).

Variants
The product is available in different versions depending on:
- LED size - 3 mm, 5 mm and 10 mm.

This product is a fully assembled module.

Video with 3mm LEDs: 

Video with 5mm LEDs: 

Video with 10mm LEDs: