Now that most of the vegetable seedlings have been transplanted outdoors, I've moved a few of my orchids under my little LED grow light as an experiment.
My little Pleurothallis gargantua has been sputtering along for the last year, occasionally growing a dainty little green leaf. The new leaf, grown under the light, is a monster by comparison, and a very different color. Hopefully this means I'm doing something right!