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Q: Will a 9 volt 800 milliamp adapter work with a 9 volt 400 milliamp device?
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Can you use a 8 volt 200 mA adapter to power a 6 volt 200 mA device?

It might work if the device that you are plugging it into has its own voltage regulator, there is no way of knowing this. Personally I would not take the chance. When a manufacturer designs a piece of equipment it uses a specific voltage for the circuitry to operate on. Varying from this voltage is not a good idea and most likely it will void the warranty if the device becomes inoperable.


Can a 12v dc 500mA adapter be substituted for a 12v dc 200mA ac adapter?

No.If it is AC output, it will blow out the power circuits of the DC device.If it is DC output, it doesn't have enough current capacity for the load of the DC device.If you want to power a DC device with a wall wart, make sure the wart is:DC outputCorrect polarity (some have reversible polarity)Exact same voltage as the deviceGreater than or equal to current rating of the device


What if I Used wrong ac adapter in electronic device?

If the AC adapter gives too little voltage, the electronic device will probably not work. If it gives too high a voltage, you will probably burn out the electronic device, which will have to be replaced or rewired. If the AC adapter is too weak (provides less milli-amperes than the device needs), the AC adapter can burn out. In summary, you need to check: (a) that the adapter should have the correct voltage, and (b) that it provides the required amount of milliamperes (or more) for the device.


How do you convert your 110 volt neon sign to run off 240 volt UK socket?

What you will need is a 240 to 120 step down transformer. An adapter might work but it depends on what the current draw of the neon sign is at 120 volts.


Can you use an adapter to use a 120 volt appliance in a 240 volt outlet as there are some at the hardware store for 30?

If it is a 120/240V receptacle (such as for a dryer), then yes, there are two 120 volt leads and a neutral in the 240 circuit, the adapter is just using one 120 volt lead and the neutral to convert it to a 120 volt circuit.If the circuit is just 240V, then there is no neutral.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.

Related questions

Can you use 5v ac adapter instead of 4.5v ac adapter?

Yes the voltage is close enough to work. What you have to be cautious about is the milliamp output of the adapter. Make sure that the output of the adapter is higher than the device that plugs into it.


How can you change the 30v1000ma power output on your acdc power adapter to a output of around 30v1ma?

Your power adapter is rated up to 30 volts at 1000ma. (1 amp.) If you have a device which only draws 1 milliamp, then it should work with this adapter, as long as the voltage is correct.


Can you use a 9v dc 210mA adapter on a 12v dc 150mA device?

No, if the device requires 12 VDC then no substitute adapter of a different voltage will work.


Can a 9 volt 100mA ac adapter be substituted for a 9 volt DC 300mA adapter?

No. an AC adapter will not work for equipment that needs DC.


Can you use a 12 volt adapter on a 15 volt device?

No you shouldn't use a 14 volt 5 amp adapter on a 12 volt 5 amp device unless you know for sure that the 12 volt device has an internal voltage regulator that will lower the voltage to the correct voltage range the device was designed to use. As long as you always take care to check the output voltage with a voltmeter first, to be sure that the voltage from the adapter is regulated, meaning that it does not rise when a lower current in amps is drawn from it, you may be able to use an adapter that gives the right voltage at a higher amp output rating than the device actually takes. (For example, it may be possible to use a 12 volt 7 amp adapter for a 12 volt 5 amp device.)


Will a 7.5 V 1500 mA power adapter work with your 75 V 1600 mA device?

No it will not. The adapter with an output voltage of 7.5 volts will not even come close to operating a device that requires a 75 volt supply. The best thing you can try is to find an adapter that will output the 75 volts that the device needs.


Will 12 volt transformer work on 3 volt device?

No, it will destroy the 3 volt device.


Will 9v 300mA power adapter work with a 9v 700mA device?

No, the adapter's power output has to be equal to or greater that the current draw of the device.


Can a 9 volt 1.3 A ac adapter be replaced with a 9 volt 1.6 A ac adapter?

Yes, this should work fine.AnswerThe rule is that the voltages should match, but the current rating of the adapter must exceed that of the load you intend connecting to it.


Can you use a 6 volt adapter on 9 volt equipment?

No, the unit might work but the low voltage will cause unit to stop.


Will 9v 1100mA power adapter work with your 9v 500mA device?

Yes, a 9v 1100mA power adapter work with your 9v 500mA device. The mA number is the maximum amount of amperage that the adapter will produce without overloading itself. At 500 mA the adapter will only be working at half load.


Is it safe to substitute a 6 volt 2000 mA adapter for a 9 volt 1200 mA adapter?

No, if you use a 6 volts adapter instead of a 9 volts adapter, you will be supplying 3 volts too little to the item that requires 9 volts. Either it may not work properly or it won't work at all. The fact that the 6 volt adapter can supply more current (2000 mA instead of only 1200 mA) won't help solve the problem of having insufficient voltage.