Thanks for quick replies! Unfortunately, this light HAS to have both lights on to work,turning one off is not an option. Is there a different light I could buy? Again can I achieve what I want with a low tech set up? I have a feeling I will be even more frustrated with high tech. I have thought about havering my husband hang the light, but the height of the tank buts the light at a level where the light shines in your eyes when you are sitting in the furniture. That's uncomfortable! Any help would be greatly appreciated!!!