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You might be able to, but you probably *shouldn't*. 1 amp is equal to 1000 mA. The device requiring 1.0A is listing the maximum amount of amps that the device will need from it's power supply. If it only delivers 300 mA, there's a chance it may still run, but it could exceed the current needed to run the device (which could shorten it's life, or burn it out immediately in the worst case scenario).
I currently am using a 12v 500mA supply with a light-based device requiring 12v 1A, and while it does work, the source device (an adapter) gets extremely hot and could be a fire hazard.
Stick with the recommended matching specs, or if you can't match, even 12V2.0A would be safer and preferred.
What else can I help you with?
What will happen if use a 12v 500ma instead of 12v 300ma?
Using a 12V 500mA power supply instead of a 12V 300mA power supply will likely be fine as long as the voltage matches, but the higher current capacity (500mA) means the power supply can deliver more current if needed by the device. The device will only draw the current it needs, so having a higher current capacity power supply should not cause any issues.
Can a 12V 2A adapter be used for a 12V 500mA device?
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.
Say the power consumption of my 12v devise is 80 mA or less and the instructions say use a 12v 300 mA power supply and I use a 12v 800mA OK or not?
Generally, yes. If your devise will only draw 80mA, it will do it whether it is connected to a supply that is capable of supplying 300mA or 800mA. The amperage rating on the power supply is the highest current that it is rated for. It will easily and safely provide less current. The load that is connected to the power supply will determine the actual amount of current.
Will a 12v 1300ma operater a 12v 2.0 amp chair?
No, a 12V 1300mA power supply will not be sufficient to operate a device that requires 12V 2.0A. The device will not receive enough current to function properly and may be at risk of damage. It's important to match the voltage and meet or exceed the amperage requirements of a device when selecting a power supply.
How many amps in 12v 150w?
Volts * Amps = Watts 12V * A = 150W A = 150W/12V A = 12.5
What will happen if use a 12v 500ma instead of 12v 300ma?
Using a 12V 500mA power supply instead of a 12V 300mA power supply will likely be fine as long as the voltage matches, but the higher current capacity (500mA) means the power supply can deliver more current if needed by the device. The device will only draw the current it needs, so having a higher current capacity power supply should not cause any issues.
What is the difference between a 9v 300mA Adapter and a 12v 300mA Adapter?
difference is 2.7 amperes in numbers will be 12 volts 3 amps and the other will be 12 volts .3 amps
Can i charge a 12v 7.2 battery with an out 12v-300mA charger?
Yes, you can charge a 12V 7.2Ah battery with a 12V 300mA charger, but it may take a long time to fully charge the battery due to the lower current output. The charger will provide a safe voltage for the battery, but the charging time could be significantly extended compared to a charger with a higher current output. Ensure the charger is compatible with the battery chemistry to avoid any damage.
Will a universal ac adapter that says it is 1.5-12v up to 300ma be used to charge a portable DVD player that uses a 9 v1.5 a battery?
no
Can you use a 12v-0.6a 7.2va adaptor instead of a 12v 1.5a adaptor?
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.
If you need a 12v 3.0a ac adapter can i use a 12v 300ma?
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.
Can a 12v battery be used in a 12v device?
the answer is yes as long as the device works on dc current and not ac current if you tell me what the device is i might be able to help further
Can a 12V 2A adapter be used for a 12V 500mA device?
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.
For a device requireing 12v 1.5A will a DC adaptor output 12v 2A also work for this device?
Yes, a DC adaptor outputting 12V and 2A will work for a device that requires 12V and 1.5A. The adaptor can provide up to 2A, which means it can supply the necessary current without overloading. Just ensure that the voltage matches (12V) and the polarity is correct for safe operation.
Is 12V 6A adapter better than 12V 4A adapter?
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.
What happens if 12V-1200mA supply is given to 12V-700mA device?
It will work fine as long as the supply voltage matches the device. They both must be 12V, and both usually must be the same type-- either AC or DC. The supply current must be at least as much as the device requires.
Can a 12v 550ma device be run by a 12v 210ma supply?
No, the supplies output is too small. To run a 550mA device a supply source of 600mA and larger would be needed.
