12v 2a how many watts

DC f ans will often give you the voltage and amperage. As long as you have two of these, you can determine the third. For instance, a 12v fan that has a 0. Amp draw will compound linearly as you add more devices into a system think adding a new water pipe with a consistent pressure ; voltage will not change unless the power supply is changed. Q: What voltage fan can I use with my system? The lifespan will drop off significantly as you get further you get away from the rated voltage.

Click Calculate. Here is one example of how this calculator is commonly used by security system installers as an amp calculator. They first need to calculate how many amps a 24V AC power supply outputs. For example a 24VAC50 power supply is 24 volt, 50 volt-amps watts are also known as volt-amps. In the above calculator, the installer will enter a value of 24 in the volts field and a value of 50 in the watts field.

The store will not work correctly in the case when cookies are disabled. Home Conversion - Watts, Amps, Voltage. Conversion - Watts, Amps, Voltage.

Example: 1. Compare Products. Remove This Item Compare. Clear All. Amps multiplied by Volts equals Watts, which is the measurement used to determine the amount of energy. The higher the wattage is, the more power and output from the appliance.

In terms of the hosepipe example, this would refer to the amount of water being released. For direct current DC the electric current flows only in one direction. However, in alternating current AC the electric current changes direction at 50 times per second 50 Hz or hertz in the UK supply.