A power indicator would be any device (such as a meter, LED, or piezo buzzer) that indicates that a device is powered up and/or how much power the device has.
If the power strip has an indicator light it uses a very minimal amount of power, especially if it's a neon or LED indicator. If the power strip uses either of those, the power use is effectively unmeasurable. Incandescent indicator lights use a very small amount of power. But in reality, indicator lights are off when the power is off, so actually power strips use no power when they are off.
Turn on power switch
Check the fuel indicator!
I would think ALL of them ! The power light is an indicator for the user that mains is present and the unit is switched on !
The check power light on a vehicle is a warning indicator. A common cause of this is a improperly charged battery.
Power Supplies, Disk Drives, Power Button, Network Jacks
Left to the Shift Stick is a general power switch for all gears across the transmission. Operates the Power indicator light on the dash as well. It allows the car to rev out a little longer between gear changes. For added pick up.
To install a light switch with an indicator light in your home, you will need to first turn off the power to the circuit. Then, remove the existing switch and connect the wires to the new switch, making sure to match the correct wires. Finally, secure the new switch in place and turn the power back on to test the indicator light.
what is the unit of power
It means you have pushed the eco button to power. In english , the power button changes the shift pattern for more performance on the transmission.
A pH indicator changes color depending on the acidity or basicity of the solution it is in. In an acid, the indicator will have one color and in a base, it will have a different color. By observing the color change in the pH indicator, one can determine whether the solution is acidic or basic.
Power steering is under the hood on the passenger side in the corner closest to the windshield It is a black cylinder with turn off top. Remove the top and read the indicator stick. Use power steering fluid to add until reads full on the indicator stick.