[Purdy Swoft]

Mine is the later style that mounts undre the dash rail with a toggle switch. I don't have any problems using the recommended 3 candle power bulbs with 6 or 12 volt. I can understand how the dash lamp cap on the earlier style would get hot. I only turn mine on when I need it. I don't like too much light in the cab at night , it gets distracting plus draws juice.