TCS MC4, HO Scale Motor Decoder:
The MC4 is a 4-function HO and N scale hard-wire decoder with a 7 pin JST socket. The MC4 is designed for use in locomotives where a T-series or M-Series decoder is too large, and more than 2 lighting functions are needed. The MC4 is great for use in locomotives with ditch lights!
 
Back EMF Load Compensation: Provides superior slow speed control and high performance under load.
Quiet Drive: Super-quiet motor control for "buzz" free motor performance.
DC Mode: Decoder will automatically detect DC power. You can also configure how your lighting effects function on DC.
Variable Momentum: Allows you to make custom acceleration and deceleration curves.
Incandescent Bulb Support: This decoder can be used with 12 Volt bulbs.
Function Remapping: Buttons 0 through 12 may be used to control the lighting functions of this decoder.
Programmable Lighting Effects: Choose from 20 separate user-programmable lighting effects!
Dimmable Brightness: Configure multiple different brightness levels for your LED's or incandescent bulbs.
Decoder Lock: Feature which prevents accidental/unwanted programming while activated.
 
MSRP is $51.95. (Picture courtesy of TCS.)