At the heart of the system is the projector or light source which illuminates the fibres (These are also sometimes known as "light engines"). All our light sources are now based on super-economical LEDs and we have versions available that change colour, twinkle, dim and even strobe. Most models are supplied with radio remote controls and many models include DMX functionality. These DMX light sources can be integrated with home automation systems by firms such as Rako, Lutron and Control4.