JCD Type halogen light bulbs are line voltage (120-130 volt) halogen
capsules with pins on the base. These halogen light bulbs may be found
in puck lights, under-counter lights, desk lamps, pendant lighting, and
accent lighting. JCD type halogen light bulbs have either GY6.35, G8, or
G9 bases. The GY6.35 base measures 6.35mm between pins, while the G8
base measures 8mm between pins. G9 base JCD type halogen light bulbs
have two loops on the base instead of straight pins, and they have
become increasingly popular. JCD Type Halogen Light Bulbs are available
with both clear and frosted glass.
Please note that JCD type halogen light bulbs should not be touched
with bare skin. Halogen light bulbs utilize a semi-permeable glass with
can be penetrated by oil from skin. The oil creates hot spots on the
glass that reduces the bulb's life.