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Factory wiring
4 lamp rapid start magnetic ballasts should be replaced with one 4 lamp instant start electronic ballast. Each lampholder has four separate connections. Find 4 Lamp Instant Start Ballasts
1. Connect each of the individual blue wires from the instant start ballast to each pair of the lampholder individual wires (red and blue) of lamps 1 and 2.
2. Connect each of the individual red wires from the instant start ballast to each pair of the lampholder individual wires (red and blue) of lamps 3 and 4.
3. Connect one of the common yellow wires from the instant start ballast to the yellow pair of lampholder common wires of lamps 1 and 2. Connect the other common yellow wire from the instant start ballast to the yellow pair of lampholder common wires of lamps 3 and 4.
