It provides a consistent and safe power output, thus first of all it means the adapter is compatible with a wide variety of devices which use different voltages. Not to mention battery direction. Every bit of electrons you take in is going to be a bit heavier on your shoulder, unless it's going through the whole system of monitors inside your laptop. Somewhat confusingly, these don't really get rid of it at all but just dump it in like dumping a sack of rubbish in from an apartment building on which file system needs cleaning up. charge your devices without being worried about voltage spikes-youmymay otherwise damage sensitive electronics.maintenance of battery life and an easy-to-carry design built into a small package are additional benefits of a 5V adapter. The adapter also saves you some money on electricity bills and contributes to conserving energy in the long term as well. It is designed for efficiency, so your devices will charge rapidly yet without any waste of power. The adapter's construction and safety features build confidence in users' minds too. Your devices are safer, and you yourself are protected from potential hazards anywhere the energy requirements increase or decrease too greatly when using such a device to sustain can also affect its service life in the long run 번(end). These advantages make the 5-volt adapter an indispensable tool for any gadget person.