Does the colour of your lockscreen/background affect battery life on iPhone?

I've read on a few websites that having a dark/black background photo on my iPhone will use less power than a bright colour theme, hence consuming less battery. Is this true?

The light comes from one big glow panel, and the number of lit or unlit pixels doesn't matter. You can save battery life by turning down the brightness control.

No.

Only by reducing the overall brightness setting
can you save power by adjusting a screen parameter.

The biggest battery eaters in an iPhone are Apps ---
close All of them that are not being used.

… Sort of like the fact that a refrigerator, an electric water heater, an electric dryer,
or an A/C unit is the biggest power drain in a typical home,
but a lot of people are more concerned about how much energy a nightlight uses.

Learning the realities of power consumption can do a lot of good.

You can save battery life by turning down the brightness of your display it consume the battery but very less, specially battery are more consumed by apps in the phone so close the apps when not in use. You can see when we set our phone on power saving mode the light of display become pale it means brightness consume battery.

You can save battery life by turning down the brightness of your display it consume the battery but very less, specially battery are more consumed by apps in the phone so close the apps when not in use… You can see when we set our phone on power saving mode the light of display become pale it means brightness consume battery…

No…

only by reducing the overall brightness setting
can you save power by adjusting a screen parameter…

the biggest battery eaters in an iphone are apps ---
close all of them that are not being used…

… Sort of like the fact that a refrigerator, an electric water heater, an electric dryer,
or an a/c unit is the biggest power drain in a typical home,
but a lot of people are more concerned about how much energy a nightlight uses…

learning the realities of power consumption can do a lot of good…

You can save battery life by turning down the brightness of your display it consume the battery but very less, specially battery are more consumed by apps in the phone so close the apps when not in use… You can see when we set our phone on power saving mode the light of display become pale it means brightness consume battery…