1, candle Most commonly, reading novels is a must.

2. Energy storage emergency light. The upgraded candle can provide a small range of light, which is indispensable for playing mahjong.

3. Bribe the life teacher. This is a great return on investment, so you can borrow his electricity.

4. If you play cards or something, just move the table to the aisle.

Dc UPS power supply

Generally speaking, DC UPS can provide 9V or 12V power after the dormitory is cut off. After the dormitory loses power, its router loses power. At this time, a DC UPS is needed to supply power to the router in the dormitory. At the moment of power failure, the DC UPS power supply will be switched to battery power supply instantly to ensure the normal work of the router.

Although this scheme also has an alternative scheme of charging treasure ++USB booster cable, the latter needs to be manually switched during power failure, and the charging treasure will also be forgotten, so in comparison, DC UPS power supply is still the most fragrant.