T4 halogen capsules from 20W to 50W, in JC format on a GY6.35 base at 12V and JCD format on a G9 base at 120V, delivering up to 825 lumens, in singles and two-packs.
This group spans both voltages, which is the single most important thing on the page: a GY6.35 capsule is low-voltage and needs a transformer, while a G9 JCD runs directly on 120V. The two are close in appearance and are the classic mis-purchase in the category.
Decorative chandeliers, wall sconces and desk fittings are the common applications. The smaller capsule is T3 JC; the LED conversion is in LED G4, G9 & B6.