How to calculate current dawn by a 36 watt tube light.?

Question

How to calculate current dawn by a 36 watt tube light.?

Answer 1

P=I x V x PF

Power = current x voltage x power factor

for resistive load like an incandescent pf=1

for a flourescent pf<1

a decent estimate tho would be P=I x V

Answer 2

Divide the Watts by the voltage, e.g. for a 110 V Voltage will be:36/110=0.33 A

P=IV

P: power in Watts

I: Current in Amps

V: Voltage in Volts

Answer 3

I think you are in the UK, so it's 36/230 = 0.16 amps.

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