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Most fuses or thermal circuit breakers are designed to hold (not trip or melt open) 80% of their rated load. 80% or 15 amps is 12 amps. 12 amps at 120 volts equals 1440 watts. So you can install all the lights you want as long as you do not exceed 1440 watts total. Example: If you installed 28 watt T5 lamps with 2 bulbs per light then you can install 25 of these lights. That is assuming there are only lights on the circuit and not outlets.

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11y ago

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