AC to DC 12V 1.5A Power Adapter Supply, Plug UK 5.5mm x 2.1mm

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Because a) the voltage matches, and b) the amperage provided is greater than that needed, you can use a 5v-2A charger with a 5V-1A device.

Power supply units : CCTV Kits Power supply units : CCTV Kits

But I thoroughly agree with your working rules; get the voltage exactly right, and only substitute a higher current power pack where a lower current one used to be. If an incorrect voltage is used — say a higher voltage than the device is rated to accept — then yes, too many amps may be drawn, and the device can be damaged.Many people are confused by amperage ratings and what they mean when it comes to power supplies and replacements. Power supply efficiency is known as the amount of power actually provided to the internal circuitry, divided by the amount of power drawn from the mains supply.

12 Volt 1.5 Amp Worldwide Power Supply (US/EU/UK/AU) Nebra 12 Volt 1.5 Amp Worldwide Power Supply (US/EU/UK/AU)

If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page. If you load up a power supply, you will have losses in the wire that connects the supply (wall wart) to the device. As long as the correct voltage is used, a device will draw only the amperage it needs, meaning there will not be “too many amps”.

USB wall chargers have to provide the same voltage (like the article said, it’s fixed), but some are capable of providing higher amperage for those devices that can use it. Thus, as long as you replace your power supply with one capable of providing as much or more amps than the previous, you’ll be fine. No, amps do not have to match, but the power supply or charger must be able to supply enough amps as required by the device being powered or charged.