Outside Security Light From Interior Light Switch

[androo]

Hello,

I want to install an outside security motion sensor light using an existing interior kitchen light switch for power.

I've changed the single light switch for a double switch but I can't get it to work whichever wiring combination I use.

The kitchen light switch is a two way one which allows me to turn on/off at either switch

I know it's possible as, I did it in a previous house where I lived.
The security light is 150watt

Any help appreciated

[ericmark]

I have replied to other post.
Eric