On 16/01/2020 06:46, fred wrote:
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 )?

If, as the wording implies, you have a mains adapter then ditch this and
look for a 12-to-5V DC-DC converter. The "bargain basin" approach might
be to re-purpose a car USB adapter.