PIR security light works in reverse

[iantresman]

I've just changed the bulb in an outdoor PIR security floodlight (to LED). But the light stays on by default, and turns off when I go outside. I don't think there is a control to "reverse" its mode of operation.

 

[davesparks]

What type of lamp was it before?

It may be that it has electronic switching rather than a relay and the minimal load presented by the LED lamp is messing with this.