I have a Radio South re-chargeable glow driver. It is about 3 inches x 3 inches x 1.5 inches and has a series of LED's on the top to show glow activity. It also has internal NiCd batteries that seem to last forever. I charge it overnight before each flying day. It is three years old now and seems to work just as well now as it did when I first bought it.</p>

CGr.</p>