That is way too expensive. They sell the bulbs in HD for around $25. I
collect light bulbs and can tell you that its too expensive. You will
need a ballast though.

There is no danger from UV if the glass outer shell is intact.

There IS a danger from explosion, and those bulbs must be encased in a
fixture that can contain them. Occasionally the bigger ones (1500W)
will pop at a stadium and you can hear them go from across the field.
The quartz in them is red hot. But I think they only blow when they get
near the end of their life time.

The 400W is the cheapest of the lot. The smaller ones are more
expensive, as are the larger ones, as 400W is the most common.

You can also buy them at www.lightbulbdepot.com and www.topbulb.com,
etc.

Dean