The history of the G9 bulb base is closely linked to the evolution of halogen lighting technology. G9 bulbs are notable for their compact design, and like G4 bulbs, they have a bi-pin base, but the pins are spaced 9mm apart.
Halogen bulbs were developed during the mid-20th century as an improved version of traditional incandescent light bulbs. The introduction of halogen gas into the bulb allowed for a longer lifespan, higher luminous efficacy, and a smaller, more compact design compared to incandescent bulbs. This new halogen technology paved the way for various new bulb bases and designs, among which the G9 bulb base was introduced.
G9 bulbs became popular during the late 20th century, particularly in Europe, for their compact size and ease of installation. Because of their small size, they were ideally suited for decorative fixtures such as chandeliers, pendant lights, and wall sconces. Their capsule shape also meant that they did not require an additional glass enclosure like traditional incandescent bulbs, allowing for sleeker and more minimalistic light fixture designs.
However, like other halogen bulbs, G9 bulbs were not very energy-efficient and produced a significant amount of heat. This became a concern with the growing awareness of energy conservation and environmental sustainability.
With the advent of LED technology in the 2000s, the G9 also underwent a change. G9 LED lamps began to appear on the market, offering the same compact form factor as halogen G9 lamps but with much better energy efficiency and lower heat output. The G9 position is not perfect.
The small size of the bulb poses a challenge for G9 bulbs, as there is no room for cooling, so the G9 LED will be a temporary solution until the G9 is phased out and replaced by solid LEDs that can be attached to a metal frame.
What is the base of the G9 lamp?
The G9 lamp holder is characterised by two pins every 9mm and is primary used with 230V.