G4, Bi-Pin Bulbs

These G4/Bi-Pin bulbs are traditionally found in the ceiling puck lights.  They normally will be inserted sideways in the fixture.  Occasionally, the bulbs will go straight into the fixture.  In this case, we would use the back-pin bulbs or the G4-S. When inserting the bulbs horizontally in the fixtures you will find the wire pins may be too long. If that is the case you can remove the black plastic spacer on the pins, insert the bulb in the socket, see how much it sticks out, then remove that extra wire from the ends of the pins.