El' Circuito De Shorto (shortcircuit),
For the Magnetic Transformer driven Lamps (used with the Halo Fixtures / MR16 Lamps), the "Electronic" type Dimmer is the Commonly used Animal.
For the Kichler LV Strips with the "Electronic Transformers", the "Standard Incandescent" type Dimmer is the Commonly used Animal.
Verify this per Manufacturer of Fixtures and / or Dimmers. They will be more accurate than what I am explaining - and may offer actual Part Numbers + Prices!
BTW, Halo has Spec Sheets in .PDF which may be even more helpful.