LED bulb
The electrical power drawn by a light-emitting diode lamp used for illumination.
9 WPowerEveryday quantities
LED bulb vs Laptop in use
What are they, and what does the difference actually look like?
Two things. One honest scale.
Meet the pair
What these two things are
Laptop in use
The electrical power consumed by a laptop computer while in active use.
50 WPowerLaptop in use has about 5.56 times the power of LED bulb.
01
LED bulb9 WPower
02
Laptop in use50 WPower
Power is energy per unit time: one watt is one joule per second.
Measurements, assumptions & sources +
LED bulb
A chosen 9 W electrical input; brightness is a separate measurement.
Defined examples — our methodology
The marked power is calibrated. Unmeasured illustration details are representative.
Laptop in use
A chosen 50 W electrical draw. Workload affects actual consumption.
Defined examples — our methodology
The marked power is calibrated. Unmeasured illustration details are representative.
Change the comparison
Put something else beside it.
Measurement details
Why these numbers?
The visual compares power with power. The records below preserve each value’s basis and caveats.
LED bulb
9 WPower · example
A chosen 9 W electrical input; brightness is a separate measurement.
Laptop in use
50 WPower · example
A chosen 50 W electrical draw. Workload affects actual consumption.
- Comparing
- Power ↔ Power
- Relative size
- Laptop in use is larger on this measurement by a factor of about 5.56. Laptop in use's selected measurement is approximately 456% greater than LED bulb's.
How to read the visual
The labelled spans and stored measurements determine the scale; unmeasured illustration details do not.
- LED bulb is labelled example; treat the displayed value as a comparison anchor rather than false precision.
- Laptop in use is labelled example; treat the displayed value as a comparison anchor rather than false precision.
There’s always another scale
Follow your curiosity.
PowerLED bulb9 WThe electrical power drawn by a light-emitting diode lamp used for illumination.PowerLaptop in use50 WThe electrical power consumed by a laptop computer while in active use.
PowerElectric kettle3 kWThe electrical power used by an electric kettle to heat water.
PowerWind turbine5 MWThe rated electrical power output of a wind-driven generator.
SpaceSun1,391,000 kmThe Sun is the star at the centre of the Solar System.Side by side
Another point of view.
