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What is the correct way to wire up a Hatch transformer?

Please make certain that the black and white input wires (primary side) of the low voltage transformer are connected to the power line (120 volts or 277 volts) using wire nuts that the two red output wires (secondary side) of the low voltage transformer are connected to the low-voltage light source using wire terminal blocks of appropriate size (for solid contact). Low voltage halogen or low voltage xenon lighting systems carry relatively large currents so all of the low voltage connections must be very tight to prevent arcing (a possible fire hazard) within those connections. Note: Do not connect 277 volts to a 120 volt transformer, and also do not connect 120 volts to a 277 volt transformer. Make sure you have the correct transformer that matches your input voltage.