For my Raspberry Pi B+, I have a 5V 5A adapter.For the adapter though I had to cut and connnect a micro usb cable (to power input of RPi) and another cable to the power outlet (kind of and industrial adapter i think so i needed to do the wiring myself). Now eventhough everything works OK, ( I have two RFID readers and a QR reader connected to USB ports along with relays, buzzer, temperature sensor etc. to GPIO pins) the PWR LED is not on. With a different adapter (5V 2A) I get a always on red PWR LED.
Is PWR LED not being on indicates a problem? or is this simply an issue of me being not able to connect micro usb cable properly.
On a side note if I get always on PWR LED with 5V 2A adapter, I think I don't need a 5V 5A is this correct?