The energy usage is very small — as mobile devices are generally very efficient. But the impact it has on battery life is big — and using more battery results i

The energy usage is very small — as mobile devices are generally very efficient. But the impact it has on battery life is big — and using more battery results in the battery dying sooner and then the consumer needing to get a new phone. A simple half-way solution to this is just to support a dark mode. People generally prefer it anyway.