I propped it up in a pitch black room. With the camera mounted on a tripod, I backlit the satellite receiver circuit board with an LED flashlight. I light-painted the entire board from behind as opposed to simply holding the flashlight from a stationary position. This way, I was able to get some intense lighting through the open holes as well as the intense greens. Near the end of the exposure, I turned the flashlight off and gave a quick burst of light from a single direction in order to create shadows to give a sense of perspective.
None of this was planned. Just experimenting. I originally wanted smoke trailing through, but couldn't produce enough smoke with the candles I had. Using incense next time.