difference is 2.7 amperes in numbers will be 12 volts 3 amps and the other will be 12 volts .3 amps
The difference is in the output voltage. One is 9 volts and the other is 12 volts. The capacity capacity of running a 300 mA device is the same.
no
No. Or at least not for long. 300 mA is 0.3 A, 1/10 of the 3 A you're asking for. It'll either overhat and break, or trip an internal fuse and shut down.
Yes
No, the replacement adapter has to be of an equal or greater value but never lower.
wherw can i buy a 12v23va adapter
i need a 12V 55VA Adapter for my Christmas Tree where can i get one and quickly
No. If it works at all, it will be underpowered, and possibly damage the speakers. To power 12V speakers, you have to have an adapter with EXACTLY 12V (no more, no less), and at least 1A. You could hook up a 12V 4A adapter if you wanted to, your speakers would just only draw 1A of power. Make sure you use a 12V adapter though!!
12v 1.5amp power adapter is 18 Watt, can't load more than 18W power consumption,3amp power adapter can load 36W.
The adapter's voltage must match that of the device, and its current-rating must exceed that of the device. So the answer is yes.
what is the diference between 12V 15A DC coil & 12V 10 amps DC coil
ful circut diagram ac to dc adapter 12v dc
I wouldn't recommend it ! If the device needs to draw more current than is available - the adapter could overheat, posing a fire risk.