
The difference between the "H" and "J" tracks can be a bit confusing when trying to combine an old J track with a Lithonia H track. There is a distinct difference between "H". Trace ("H" short for Halo) is a three-wire trace with polarity and a ground strip. This trace contains a ground conductor. Most lights sold today have a three-prong base. Track "J" (abbreviated as Juno) and 2-wire track "H" (3-pin) connectors (straight or angled) are not interchangeable with Gauge "J" (2-wire). "H" track must have correct polarity between adjacent sections!The third type "L" is short for Lightolier.similar to J. Check your component's style and requirements before buying add-ons!

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