I never like unexpected results with electricity. I'd appreciate some expert advice on this one.
I replaced a small fluorescent light fixture in our closet with a xenon fixture from Lowes. It was a straightforward install, 3 wires, black white and ground. The fixture itself has a 3-way switch (off, low, high) which was set to off.
When I was finished, I flipped the switch on the wall (the switch on the fixture was still off) and got a quick spark at one of the bulbs (with a small puff of smoke). I assumed the bulb had burned out or something; but just for kicks I turned the switch on the fixture to low, and all 3 bulbs lit up fine. Flipping the wall switch now seems to operate everything fine, and the light appears to work as it should.
So my question is... what would cause the spark? There should be no power at the bulb when it happened because the fixture was turned off. The fixture switch wouldn't be on the return wire would it? If it were a short there would be other issues, so I don't think it's a short. I'm confused and a little concerned. Is this something I should be worried about? Are there any pro's who could give me some much appreciated advice? Thanks in advance...