When it goes about light bulbs wattage determines its.
Does voltage matter for light bulbs.
If the bulb isn t an incandescent bulb it won t draw 60 watts.
It determines amount of mechanical thermal or electrical power.
If you look at a store display of light bulbs you ll see dozens of shapes sizes and colors.
However some lighting fixtures are low voltage.
When a bulb burns out most people simply grab whatever spare lightbulb is available.
As a result the bulb burns cooler uses less energy watts and lasts longer.
This is the default voltage for most lighting fixtures.
If the old lightbulb was a little too dim they might opt for a higher wattage bulb to improve the illumination.
There is a voltage ratio you are able to go up or down from the voltage you need but it is always recommended to use the correct voltage or higher within the allowed ratio.
For example a 12 volt malibu light bulb would immediately burn out if you applied 120 volts to it.
This thin wire resists the flow of electrons.
The voltage is 120 volts and a 120 watt bulb has 1 amp flowing through it.
Does voltage matter for light bulbs.
You can calculate the resistance of the wire with the resistance equation.
However if you can you.
The wattage is how much power the bulb uses to operate and is basically an indication of how bright it will be.
The watts it will draw will be printed somewhere on the package.
Does wattage matter for light bulbs.
Let s say you have a 120 watt light bulb plugged into a wall socket.
Watt is a basic unit.
The most common voltage for electric light bulbs is 120 volts 120v.
The filament of a light bulb is an extremely thin wire.
And a 120 volt bulb wouldn t even light up with 12 volts applied to it.
We did it for decades focusing on this measure of electrical flow.
There is potential danger here however because light fixtures carry a maximum wattage rating and if bulbs are installed that exceed this rating there is the potential for overheating the fixture.
Choosing the correct voltage is crucial for the bulb operation.
The 60 watt equivalent bright from the start cfl light bulb from ge for example uses exactly 15.
Almost all of them will have a printed description about the voltage and wattage of each particular bulb.
This is the default voltage for most lighting fixtures.
We are used to buying bulbs taking into account their wattage.
You won t generally have much choice in the voltage as it ll be supplied by whatever voltage your system runs at.
Hose theory to understand this phenomenon an analogy is useful.
Understanding voltage amps watts.
The newer bulbs aren t marked in watts as the electrical ballast in them drastically alters what they run at.
For most cfl bulbs the actual power draw is about 25 percent of the equivalent incandescent bulb.