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Old 10-30-2010, 03:15 PM   #1
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theorical amps and real amps do not match


I have placed 23 pot lights with 50 watts bulbscalculation23 fixtures x 50 watts = 1150 wattsP=E * I1150 = 120 * I.....I = 9.6 ampsI had used my clamp meter on amps..and it reads...7 amps..WHY????

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Old 10-30-2010, 04:47 PM   #2
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theorical amps and real amps do not match


inaccurate meter, failure to consider circuit impedance , you don't actually have 120 volts, the lamps aren't actually 50 watt lamps at 120 volts

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Old 10-30-2010, 09:49 PM   #3
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theorical amps and real amps do not match


130 volt rated bulbs operating at 120 or lower voltage could produce those results. 23 bulbs on a 15 Amp circuit could have significant voltage drop as well.
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