Every NEUE linear track circuit needs exactly one connection point where the power supply cable meets the track, and this module is that point — available as T20-G with a 0.5-metre cable or T20-H with a 2-metre cable, in 2-wire or 4-wire configurations, clipping to the track magnetically on one end and wiring to the driver on the other.

Cable length is a ceiling-void distance question, not a preference. In a standard shallow Indian false-ceiling void, the supply usually sits close enough to the track connection that the 0.5-metre T20-G reaches comfortably. Deeper voids, pendant installations where the driver sits well above the suspended track, or setups where the driver is deliberately positioned away from the fixture run all call for the 2-metre T20-H instead. When the exact distance isn't known yet, defaulting to the longer cable avoids a reorder — excess length coils neatly out of sight, but a cable that's too short cannot be extended after installation.

Wire count depends on control complexity. 2-wire covers the majority of installations — standard On/Off switching or basic 0-10V dimming on a single circuit. 4-wire is specifically for circuits carrying an additional control signal alongside the power feed, most commonly RF+BT app-controlled fixtures where the wiring specification calls for that extra conductor.

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How do I decide between the 0.5M and 2M cable lengths?

Measure the distance from the track's ceiling connection to where the power supply will actually sit. Under 0.5 metres, the T20-G is sufficient. Beyond that — deeper voids, pendant installs, or a deliberately relocated driver — specify the T20-H. When the distance is uncertain, choose the longer cable, since excess coils away neatly but a short cable can't be extended.

Is this the same module used for the round ring track?

No. T20-G and T20-H are built for linear NEUE track. The round ring track uses a separate module, the T20CU-G, with its own connection geometry — the two are not interchangeable.

Ordering the wrong wire count is one of the more common small mistakes on a first NEUE order — 2-wire and 4-wire modules look near-identical and the difference only becomes apparent at the wiring stage, so confirming the fixture control type (On/Off versus RF+BT) before ordering the input module specifically avoids a wasted trip back to site.

What is the most common mistake when ordering this component?

Ordering the wrong wire count — 2-wire and 4-wire modules look near-identical and the difference only becomes apparent during wiring. Confirm whether the circuit uses On/Off or RF+BT fixtures before ordering the input module, since RF+BT typically requires the 4-wire version.

NEUE is part of the magnetic track lighting category — see Track lighting for background on how these systems work.