Compare with Halogen G4 ThisG4 LED light bulb20SMDis longer than the original halogen bulb, but it is not thicker, so it fits perfectly. Compare to halogen G4, the base is round, while halogen G4 is flat, so pls make sure this is not a problem. And Pins are about 1mm longer than the halogen G4, which makes it easier to install.
For example, if you use this G4 LED bulb to replace the old halogen bulb in a cabinet light fixture, it will work perfectly. Cabinet light fixture’s face glass used to get extremely hot when the halogen bulb was left in overnight, while this LED G4 only 2W with 220lm bright consumption a very good efficiency. Don’t consider again, come and replace all your halogen lamps to LED type.