The TCH Technology SLC-4 is a stationary decoder is suitable for control LEDs or incandescent lights.
The characteristices of the decoder are:

• Control for 4 LEDs or incandescent lights
• SLC-4 supports the full range of DCC accessory addresses (1-2044),
• Easy address programming
• Each LED can have its own completely different address
• Simple connection to layout, 2 wires to the track, 2 wires to the LEDs or incandescent lights

The SCL-4 is a single decoder board.