The RCT401 is an LED load device for 12V vehicles. The low power consumption of LED signal lighting compared to incandescent units can affect the vehicle indicator functionality. The LED load device ensures that LED signal lighting is compatible with the vehicle that it is installed on. The LED load device replicates the performance characteristics of an incandescent bulb enabling the system to work correctly.

A load device is needed when the vehicle indicator flash rate changes when the LED upgrade is fitted, or when LED lamps are fitted to a trailer. 

IP67 rated, meaning it is water and dust proof, and E approved.