Halogen Gy6.35 is named so because the 2 pins are 6.35 millimeters apart. They are typically used in specialist light fixtures, for example, in kitchen cupboard lighting, display lighting and desk lamps. They are easy to use as well because the capsules itself is push fit, all you need to do is literally push it into the fixture to start using it!
These Gy6.35 halogen light bulbs are low voltage 12 volt halogen capsules which have a 12 volt operation often through a mains voltage lighting fixture with an integral 12 volt transformer.
Saving-Light-Bulbs supplies halogen Gy6.35 capsules in either 35W or 50W wattage. They come in a warm white colour temperature which is perfect for interior use and can be universally used. With a 2000 hours rated life they are also expected to last longer than standard halogen light bulbs.