I was a bit skeptical, because is in so many reviews that Samsung devices are well loaded for some kind of random. After a test run, I can say that my Samsung Galaxy S5 smartphone quickly invites just as with the original power supply (on 1 O port) but now. Also, I'm off my Kindle Fire, my iPod and needed my Bluetooth headset or my battery pack. A star deduction I give actually for the LED light that simply indicates that the part of the current and for the whole room lit up (at night). However, I have the charger only on an hourly basis and mostly in the morning for about 2 hours in operation to charge the phone for the day, and then I invite on the occasion the other devices with the same, so it did not really bother me; However, I find the light totally useless and even exaggerated light.