So, the sun gives off light because of the different types of gases in the core. These gases , when combined, create radiation. The sun gives off this radiation in rays, producing light rays, that comes from our sun and other stars.
-This all comes from a 8th grader.
Additional answer
The Sun is very very hot and hot objects, as you know by a red hot Poker, emit light and heat. So why is it hot. It's not the mixing of gases that does it, but the nuclear reactions going on. These reactions cause the Sun to loses mass at a stupendous rate (several million tonnes per second), and according to Einstein the amount of energy given off when mass is lost is also stupendous. So the Sun gets stupendously hot.
But the question asked how MUCH light is emitted by stars. This is presumably measured in photons and I don't know the answer.
The solar flux is 1.35 kW per square metre. So all you have to do is multiply by the surface area of a sphere with a radius of 150 million kilometres, and that gives the total output.
It peaks in the visible light range but some power comes out a higher and lower wavelengths.
the firefly absorbs a chemical to produce its own light
It is almost impossible to give the fireflies light a watt rating. It is said though that a firefly puts off about 510 nanometers when it is lit up.
alot
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
A firefly!
To produce light
This will still only produce 12 volts. It will produce 1200 watts. watts is the result of Volts times Amps.
a lot
A firefly is considered luminous. Luminous means that the organism or object has the ability to produce its own light.
This substance is called luciferin.
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.