Saves setting the blanket on fire with candle. I remember reading under the bedclothes with an electric torch. Cost of batteries was a problem.
My dad admitted he does it with his PW as it's warmer and doesn't disturb his partner.
I hardly ever use the front light, but I don't object to it. I do wonder about the obsession over evenness. Ambient light often has bigger variations of shadow or sunlight through a blind.
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