A G4 light bulb is a bi-pin base lamp that runs off a low-voltage power supply. “G4” is a base designation which means the base has two pins and the gap width between the pins (center to center) is 4 millimeters. The G4 light bulb finds its usage in a variety of applications where space is a premium. These bulbs are used in chandeliers, wall sconces, ceiling lights, under cabinet lights, decorative lights, landscape lights, and other light fixtures or lighting systems in which the low voltage (12V) power supply is readily available. G4 bi-pin base light bulbs are also the usual choice of light source for marine and RV applications. They’re used in cabin lights, dome lights, step lights, and other smaller sized lighting systems.
at the Open Lighting Product Directory (OLPD)
