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2. AC adapter - Wikipedia

   en.wikipedia.org/wiki/AC_adapter

   An AC adapter or AC/DC adapter (also called a wall charger, power adapter, power brick, or wall wart) [1] is a type of external power supply, often enclosed in a case similar to an AC plug. [2] AC adapters deliver electric power to devices that lack internal components to draw voltage and power from mains power themselves.

3. This portable AC makes a room 20° colder in minutes — and it ...

   www.aol.com/lifestyle/portable-ac-makes-room-20...

   The need for air conditioning is real and lucky for us, Amazon has a budget-friendly AC unit: the Midea Portable Air Conditioner is just $250 (down from $339) with the on-page coupon.

4. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   Air conditioning can be achieved using a mechanical 'air conditioner' or by other methods, including passive cooling and ventilative cooling. [ 2 ] [ 3 ] Air conditioning is a member of a family of systems and techniques that provide heating, ventilation, and air conditioning (HVAC) . [ 4 ]

5. Power supply unit (computer) - Wikipedia

   en.wikipedia.org/wiki/Power_supply_unit_(computer)

   For example, a 900-watt power supply with the 80 Plus Silver efficiency rating (which means that such a power supply is designed to be at least 85% efficient for loads above 180 W) may only be 73% efficient when the load is lower than 100 W, which is a typical idle power for a desktop computer. Thus, for a 100 W load, losses for this supply ...

6. Standby power - Wikipedia

   en.wikipedia.org/wiki/Standby_power

   Many AC meters are designed to give readings that are only meaningful for the sinusoidal waveforms of normal ac power. Waveforms for switched-mode power supplies as used in much electronic equipment may be very far from sinusoidal, causing power readings of such meters to be meaningless. Meters specified to read "RMS power" do not have this ...

7. These are the only Amazon deals worth shopping this ... - AOL

   www.aol.com/lifestyle/the-only-amazon-deals...

   It has two heat modes — 1000-watt high heat and 600-watt medium heat, both of which take just seconds to kick in. But it also has a cooling fan mode, meaning this isn't a machine you'll only ...