I love my Ott lights - but did not know they were going to quit making them - darn! So, need to find out what size bulbs to get and lay in a supply - but they seem to last forever - I have 3 in my sewing area - and love the light - great for seeing actual colors as they really are - like sunlight shining on the fabrics... I go this route also because of the onset of macular degeneration - my Dr. told me to use Ott lights as much as possible for reading and fancy work or sewing - so got a "supply of lights".