I've converted a room upstairs so that it can be used as a workshop by my
wife. She likes to do all sorts of arts and crafts, and I was wondering
what
would be the best lighting to use in the room.

You should ensure that you use high frequency electronic ballasts. These
prevent flicker, which could be annoying or injurous working for long
periods under. You should also use a tri-phosphor tube with a carefully
selected colour temperature for the work required. Some incandescent or
halogen task lighting should be provided, particularly if the work involves
working with colour, as the fluorescent light provides a discontinuous
spectrum that can distort colours under certain conditions compared with the
more continuous one of incandescent lighting.

Christian.