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Q: What power adapter do you need to use for 7.2 watt 12 volt led lighting unit?
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Will it be damaging to use a 5 amphere power adapter to a 3 amphere unit?

No. As long as the voltage specs match. The load will only draw the current it needs to operate. If the current specs were flipped, 3A adapter on a 5A unit, this would cause problems. The unit will try to draw the 5A it's designed for and smoke the adapter.


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The graphic processing unit (GPU) is the processor that is placed on the graphic adapter. The graphic adapter host besides the GPU some or all the graphic memory, the circuitry required to interface with the computer bus where the card is hosted on (e.g. AGP, PCIe, ...), the cooling fan and some power & cooling related modules.


Can a 9v 800ma adapter be used on a 9v 200ma device?

Yes. There's a subtle difference in the meaning of the "--- ma" labels on the two units:-- On the "device" ... the unit that uses power ... the "200ma" is the current it useswhile it's operating.-- On the "adapter" ... the unit that supplies power ... the "800ma" is the maximumcurrent that it's able to supply. Anything less than that is easy.So your adapter is OK to operate your device. In fact, with suitable wiring and a bit ofcooling, it could nominally operate 4 of them at the same time.


How do you change back to stock head lights from HID lights lpaced by previous owner?

As long as it is a conversion kit, and not a replacement headlamp unit, it should be straightforward.Purchase standard halogen bulbs of the correct fitting for your vehicleRemove ballast unit that is connected to the HID bulbs. In most cases, they are powered only from the lighting power supply. Disconnect the cables to the bulbs and to the lighting power supply.In some cases there may be an additional power supply from the battery to the ballast. This can also be removedRemove HID bulbs from the holdersInsert replacement Halogen bulbsThe lighting power supply should connect directly to the new bulbsIf the power supply does not connect, the holders or wiring may have been modified, and replacements would need purchased.


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Is there a component in the system unit that converts the wall outlet AC power into DC power?

In a wall adapter there is a device that converts AC to DC. Inside the adapter there is usually a transformer that reduces the voltage down to a working voltage of the equipment that the adapter plugs into. The output of the transformer is then connected to either a half wave or full wave bridge rectifier. More expensive adapters will have a resistive capacitive network in them to smooth out the ripple DC that is supplied on the output of the bridge rectifier.


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Most simply, fix the unit to your windshield with the included suction cups, and plug the power adapter into a cigarette lighter socket.


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Is there a charger for the leapster?

There is no charger for the leapster but there is a DC adapter that powers the unit.