230 volts, 120 watts what fuses will i need a 3A, 5A, 13A please answer

Power= V*I

so currnt= power/V in this case 120/230, in this case less than an ampere. So use the 3A.

To determine the appropriate fuse for a given electrical device, you need to calculate the current (I) using the formula Power (P) = Voltage (V) × Current (I).

In this case, you have a power of 120 watts and a voltage of 230 volts.

To calculate the current:
I = P / V
I = 120 / 230
I ≈ 0.52 A (rounded to two decimal places)

Since the current is less than an ampere (0.52 A), the appropriate fuse to use is a 3A fuse. Therefore, you will need a 3A fuse for this electrical device.