can it be used to replace 12 v 830 ma transformer?
1272611
if you are looking at the 20 VA at 12 volts, it would equate to 1666 Milliamps or 1.6 amps. So it would work.
1426582
No. You will damage the unit. This is a switching power supply designed for a 12v output only.
866786
any 12 volt dc current is usable, weather it is from a battery or a transformer pack it does not know the difference - be careful to get the polarity correct...
951300
Not 100% sure but I don't think you want to try that. Transformers in this class don't usually handle that too well if at all. Also, if this might involve international adapters, you should never use them in a permanent application, they are temporary.
1062606
I've never seen one, they make transformers to convert 12 volt to 120, that may work
1220562
Probably not. Your battery pack is giving you 10 watts peak, Your charger needs 9.6 watts. This requires the converter to be 96% efficient. It probably can't make this. Do you know if your 12v device really does need a full 0.8A? Is is that just the max rating of the charger you are trying to replace?
1574986
Yes. It is 100 to 240 VAC. So it will work. Just use the cord from your current power supply.
1433492
Yes, you just need to purchase a plug in transformer to convert the 120v ac to 12v dc. 500ma should be sufficient
1174948
This is a 400 Watt PC power Supply, not a transformer, the short answer is no. Try using a 125VAC to 12VDC Transformer.
771752
Just continuing to replace fuses does not sound like the right solution. If you are using an appliance requiring more than 130W you likely need to upgrade to a bigger transformer.
2234479
other than using a transformer adaptive to you supply voltage. I would recomend you contact the manufacture direct to avoid mishaps.
1207045
I'm not 100% sure but I think you'd need a 9 volt adapter, not a 12 volt. Try this one http://www.amazon.com/gp/aw/d/B008Z76L2Q
2090509
Suppose that you could...you would need a transformer to change the voltage down to 12v (I think, or it may be 24v). But as long as you use that, I would think it would work.
435994
....use any ole 12V power supply you have left over from stuff you've thrown away. it will need to be 300ma or higher. polarity does matter!
1203635
Yes, you can. Remember that this is not a converter, it is just an adapter. You should be sure whatever you are plugging in can handle the the higher voltage and do its own conversion.
545670
The transformer on this unit is rated at 1 amp. No way will it handle 4 amps. Bob
552213
You should be able to use any transformer designed for low voltage (12 volt) lighting. I believe that Amazon may sell some of these transformers - search to find out.