The RT Signal Decoder controls coloured light signals.
This version is for common cathode LEDS or incandescent globes.
It can be configured to control 2, 3 and 4 aspect coloured light signals
There is also flashing light, alternate flashing and strobe aspects available.
Can be used with common cathode LEDs or incandescent globes from 5VDC to 24VDC
See the operating manual for a complete description
Operating Manual
Some typical signals on Aliexpress
If you are using these with a 5VDC supply then you will need a 220 ohm resistor in series with the common wire.
This product was added to our catalog on Thursday 23 April, 2026.
