This is the Digitrax DN143K2 1 Amp N Scale Mobile Decoder for Kato N RDC.

Features:
DN143K2 makes installation possible though it is somewhat challenging because of the model itself. If you use reasonable care, you will be able to handle this installation.
RDC Special Lighting: 3 light boards included with decoder, lights reverse automatically with loco direction changes, yellow lights show in the direction of travel and red lights show in the opposite direction.
The two functions have configurable strobe capability use in locos other than RDC.

Specifications:
Current Rating-Motor: 1 Amp Continuous/1.25 Amp Peak Rating
Size: For Kato N RDC
Installation: 4 part decoder with main body connected to three lamp board
Function Outputs: 4-125mA
Function Type: RDC Special, CS also available
Features: Premium
For Use With: Kato N Scale RDC Locomotive