0a for normal charging it has a clear led display showing how much charge there is left in the charger as well as what the output rate is

I bought this 12000mah high capacity power bank as my previous one was 4 years old and not charging properly so when i seen this one at such a good price this charger came well packaged in its plain brown box with a hardened bubble bag inside to protect it from any damage

1a for fast charging and the other is a 1

I recommend for you to get the best use out of your charger that you discharge it fully during the 1st few charges before itll give you the full 100 charge