How to stop an LED Troffer flickering problem

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I am replacing 30 fluorescent troffer fixtures in my building with LED fixtures: Lithonia Lighting GTL Series Recessed Troffer LED. These fixtures have led strips, no bulbs. Using a standard switch, no dimmers. Dedicated breaker, no other devices in circuit. Wiring lights in series. Testing after each light added. First light test works normally. Added second light, still normal. After adding third light, all three lights flash on and off randomly, every 5 to 10 seconds. After adding fourth, fifth and sixth lights, all lights flash on and off randomly, but at a faster rate, every 2 to 4 seconds.

Best Answer

So, your problem is that you are wiring lights in series.

This is not how you wire lights.

Single gets full voltage, works fine

Two in series, half voltage, apparently still works.

3 in series, 1/3 voltage, no worky.

4,5,6 in series, 1/4, 1/5, 1/6 voltage, no worky worse.

You are outing yourself as perhaps not actually qualified to be replacing lights, if you don't know (and evidently did not research) to wire them in parallel, as they are meant to be, so that each light gets full voltage as intended.

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