It runs on double-A batteries and has three light bulbs - two green and one red.
If the seat is down, the two green bulbs light up.
A small green bulb concealed behind the panel flashed on momentarily.
In the late 1980's, for example, Sylvania stopped making green bulbs.
The green bulb became lighted as he watched.
There are green bulbs above these displays that indicate where the next train will be leaving from.
In years when the lights are up, the tree uses 5,440 green bulbs placed on 32 cables anchored to a 102-foot diameter base.
The Shadow described the green bulb that he had seen at Ryndon's.
The tiny white light shone between the red and green bulbs on the small panel beside Devereaux's door.
From its center protruded a short stalk ending in a dark green bulb.