Leaving the plug in the socket leads to waste of standby power. After the light switched off and the room gets dark, the hole's role becomes more prominent. The luminous hole simply informs you that standby power is wasted...
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Pierr'Hole
Leaving the plug in the socket leads to waste of standby power. After the light switched off and the room gets dark, the hole's role becomes more prominent. The luminous hole simply informs you that standby power is wasted...