I'm with Kerry, take one or two Phals in and enjoy them while in bloom.
Or, find a plant light designed for this purpose. Do a web search for indoor plant lights or lamps something should turn up.
Phals. do thrive in low light levels so these would probrobaly be the best bet, at least for a trial.
Oh, be careful that the A/C isn't blowing directly on the plants. They enjoy air movement but not direct, continuous draft, especially cool/cold.

Hope this helps,
Al