I have a question for someone with a US Prius C 3 or 4 (with factory installed fog lights). Do your fog lights only work when your dimmer stalk is in the lowbeam position, or do they work in the tail light and DRL position as well? Foglight laws vary by country and it seems that Toyota fog lights work differently in different countries. Please let me know how your fogs work, it will help me with a project I'm working on.