From what? If you need 12VDC for temporary use, there is a very good 12VDC source in your PC power supply.
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!!
The main difference is the amount of current each power adapter can supply. The 12V DC 3A power adapter can provide up to 3 amps of current, which means it can power devices that require more current compared to the 12V DC 1.5A adapter. This can affect the compatibility and performance of devices connected to the adapters.
No, you cannot use a 12V 0.6A (7.2W) adapter instead of a 12V 1.5A adapter. The 0.6A adapter provides insufficient current for devices that require 1.5A, potentially leading to underperformance or damage to the device due to inadequate power supply. Always match the voltage and ensure the current rating of the adapter meets or exceeds the device's requirements.
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.
Yes, a 12V 6A adapter is generally better than a 12V 4A adapter if you need more power for your device. The 6A adapter can supply a higher current, allowing it to support devices that require more energy or to operate multiple devices simultaneously without risk of overloading. However, if your device only needs 4A, using the 6A adapter will work fine, as devices only draw the current they need. Always ensure that the voltage matches your device's requirements.
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.
It will take longer to charge the device