The Light-O-Rama control system can be operated at 240V AC, however there are some points for consideration when you do so: What lights are you going to drive with it? How do you keep everything safe? - REMEMBER 240V AC CAN KILL What are some of the limitations? How can I stop my controllers doing "x"? Topics such as these are appropriate to discuss in this section. An important point to note - working with mains voltages as a hobbyist has to be done with great care. Some of the discussions you will see here are aimed at experienced electrical technicians and so in many cases things discussed here could well fall into the "do not try this at home" category.