Can you not just supply the 5v from the 12v via a regulator?
Brian

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"fred" wrote in message
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I wish to run a Neos security camera from a 12v supply. The following
is from the spec sheet
Power Adapter: Input 110-240V (AC/DC) Output 5V/1000mA

What power 12v to 240v dc inverter would i require ?

Is it likely to be as fussy as a computer would be (pure sine wave )?