H track lighting system, aka (also known as) H-type track lighting , or HT track lighting, or standard H track or Halo compatible system.
It is aka 3 wire 1 circuit (single circuit ) track lighting system.
It has 3 metal clips, two on one side and one on the other. See figure 2
The dimension from outer-tip to outer tip (of the two clips in the same plane) it is just about 15/16”.
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