I currently have two Volt 150W transformers installed with several spot lights - system works great. I want to use the installed system to light my front (and rear) entrance stairways 4x4 (wooden) posts. The Volt Post topper is just TOO big. I would like to install about 8 of them (4 each) - and it seems it will be just too much. any idea where I can find post top lights that are compatible with the 12 VAC system that will fit a wooden 4x4 post? Timbertech is the only (12 VAC) one I have found so far and it will NOT work with 4x4 wooden posts. Most I am finding are all 12 VDC. Any help appreciated.