PAR 36 Halogen light bulbs are ideal for track lighting.  These halogen lamps are universal and burn in all directions.  PAR36 lamps last approximately 4000 hours.  They are 4 1/2" in diameter & 2 3/4" from top of glass to the bottom of the base.

You may order direct from this screen.  Simply insert the quantity in the box and click "add to cart" at the bottom of this page.  There is a 10% discount with case orders.  Click on "more Information" to get to the product descriptions to take advantage of this discount.