Researchers from BBC R&D revealed that contrary to popular belief, using dark mode on devices can consume more energy. This unexpected finding arose when participants, viewing content in dark mode, adjusted their screen brightness higher, resulting in increased power usage. The study highlighted the 'rebound effect,' where intentions to save energy lead to behaviors that negate those savings. The research also found no direct correlation between website performance optimization and energy efficiency, nor between data transfer and energy consumption, emphasizing the complexity of these interactions and the need for better understanding.
The research highlights a paradox where dark mode, often believed to save energy, can lead users to increase brightness, ultimately consuming more power.
Our study observed that a remarkable 80 percent of participants increased their screen brightness significantly in dark mode, challenging assumptions about energy savings.
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