Remember that watts are voltage x current(amps) The number of watts you can get from a 48V battery will depend on how many amps the battery can deliver and how much the load can draw.
There are many different alternators on vehicles today -(and you haven't even told us WHAT vehicle). Most modern alternators can produce at least 800 watts, many up to 2,000 watts.
There are zero watts in a small refrigerator. Watts are the produce to amps times volts. Without these values a correct answer can not be given.
Edenpure heaters produce 1500 watts. It is an electric heater, which uses quartz heating element to generate heat.
I don't know what exactly you mean by a "heat mat", but your question is kind of backwards. You don't run an electrical device *with* watts. You run them to *produce* watts (watts of light, watts of heat, watts of sound, etc). I believe the thing you are really asking is how many amps are required to run your device. As an example, consider a "1500 Watt heater" that is made to be plugged into a typical wall outlet in your home. The voltage in the wall is 120V, and the heater will produce 1500 watts of heat when plugged into that 120V. To calculate the amps, you divide the watts by the voltage. 1500W / 120V = 12.5A
This will still only produce 12 volts. It will produce 1200 watts. watts is the result of Volts times Amps.
a lot
it depends what kind of bulb you have in it. how many watts??
Around .0007 Watts. Watts=Amps x Volts 0.0007W=0.001A(1mA) x 0.7V
Remember that watts are voltage x current(amps) The number of watts you can get from a 48V battery will depend on how many amps the battery can deliver and how much the load can draw.
There are many different alternators on vehicles today -(and you haven't even told us WHAT vehicle). Most modern alternators can produce at least 800 watts, many up to 2,000 watts.
There are zero watts in a small refrigerator. Watts are the produce to amps times volts. Without these values a correct answer can not be given.
Edenpure heaters produce 1500 watts. It is an electric heater, which uses quartz heating element to generate heat.
T. Who the heck really cares
1 horsepower is equal to 747.5 watts. 125 hp therefore = 93.2kW
Most power plants produce several Megawatts of power. A Megawatt is one million watts.
Normally the watts is a measure of how many watts of electicity a bulb uses, so a 60 watt bulb uses 60 watts. The brightness is measured in lumens, so a 60-watt incandescent blub might produce 600 lumens while a high-efficiency fluorescent blub might produce 3000 lumens.