The main reason for using fixtures with two ballasts is to switch the lamps separately.
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Q3: The NEC requires that all fluorescent ballasts
Q4: A _ is defined by the NEC
Q5: Energy-efficient light fixtures come in recessed, ceiling
Q6: Which of the following ballasts may be
Q7: Track lighting consists of a surface-mounted or
Q7: Metal Halide lamps do not require the
Q9: The ballast nameplate will indicate if it
Q14: Manufacturers recommend that quartz halogen lamps should
Q16: Installation requirements for light fixtures are contained
Q17: A class _ ballast has a built-in
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