What is the difference between a G6.35 base, GY6.35 base and GX6.35 Base?

 

The G6.35, GY6.35, and GX6.35 bases are all bi-pin lamp bases with a 6.35 mm pin spacing, but they differ in pin diameter:

Base Type Pin Diameter Pin Length
G6.35 1.0 mm 7.5 mm
GX6.35 1.0 mm 6.5 - 7.5 mm
GY6.35 1.25 mm 7.5 mm


Key Differences:

  1. Pin Thickness: The main difference is the pin diameter and pin length
  2. Socket Compatibility:
    • G6.35 and GX6.35 have the same 1.0 mm pin diameter but can have a different pin length.
    • GX6.35 pins can be slightly shorter (6.5 mm), affecting socket fit in some fixtures.
    • GY6.35 has a larger pin diameter (1.25 mm), making it incompatible with G6.35 and GX6.35 sockets unless specified.
  3. Application: These bases are commonly found in halogen and LED bulbs for stage lighting, medical devices, projectors, and specialty equipment.

Which One Should You Choose?

For compatibility, it’s always best to match the exact base type specified for your fixture.
Do you need help finding bulbs with a specific base type? Please see links below:

G6.35 vs GY6.35 vs GX6.35