Your mention of the halogen lights is another issue. I often use a
halogen work light when I am working on the car or doing construction
outdoors at night. Just what are the limitations on distance and
wattage one should be aware of? I wont even get into the halogen
headlight issue, those damn blinding things to other drivers.....



So long as the protective glass lense is in place you're ok, the glass
blocks virtually all the UV that passes through the quartz tube.