I used Armstrong Standard Excelon Vinyl Composition Tile (VCT), but when I called Armstrong, they said they could not guarantee the product if the temp would drop below 50 degrees, as it could have "catastrophic failure". Now, my garage is semi heated, (tapped into the first level duck work), and it's not used as a typical garage, (not driven on in the winter), that, coupled with the price, I didn't care, worst case scenario, I could always replace the "failed" tiles. But they held up fine so far, and the temp dipped below 50 for a short period. As far as lights, it's not really that dark, bad camera setting, but I am planning on running track lights the full length of the two bays.