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How many 40 watt regular lights can you put on a 20 amp switch?
Wiki User
∙ 12y ago
You can safely put 48 regular (incandescent) 40 watt lights on a 20 amp circuit. If at some future date you might place higher wattage lights in the circuit, you will want to limit the number of lights to 20.
Wiki User
∙ 12y ago
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