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Re: Replaceing 400 watt metal halide bulbs with LED
Posted to Shop Management Forum on 12/23/2015 5 Replies

Henry,, You take the Ballast out. I am also tired of replacing ballast and fluorescent bulbs. The new LED is powered by the AC 110 supply. The bulbs I purchased from ebay had the diagram to do the new wiring. Very easy to do. The bulbs I purchased were about &... Login to read more.

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