If you just need a bare transformer and know what to do with it, I've always liked www.allelectronics.com and www.mpja.com . If you're looking for commercially packaged power stuff, I've never seen an inverter with more than one output voltage.Originally Posted by hamz01
I'm a little fuzzy on what you need to do, actually. Do you want to have a 120VAC outlet in your car, then plug wall warts into that? Also, neon tubes often have a really high voltage. I had a supply for a neon bar sign that put out 10KV, for instance. I'm not familiar with the "street glow" type neons, though; they are probably lower voltage.