I assume these are 120V halogen (i.e. not low voltage)? If so
18*50watts/120V=7.5 amps. This is should be okay on a dedicated
circuit. What is the maximum rating on the potlights? I would check
the calculation with the maximum wattage and verify that you still are
under 15 amps. I suspect (but don't know) that the code inspector will
be looking at the maximum not what you plan to use. BTW how big is the
room?

On Jan 27, 3:03 pm, wrote:
Done lots of reading and think this is okay - but thought I'd post to
get others thoughts:

I'm finishing a room in the basement by putting in 18 recessed
potlights (large room). They are halogen bulbs and the lights are
rated for 50 watts each. This is okay on one circuit? (If I did my
watts/amps-math right...) Also, can I use a standard dimmer switch for
the halogen bulbs?

Thanks for the input.