I have installed two of the Lumascan LED sensor downlights. They easily replace existing 90-mm downlights without the need to open up the cutout for the sensor on older style of sensor lights. The good thing going for the Lumascan is that it has a daylight function, so the light does not turn on during daytime. There are a number of steps for the daylight setting so that it can be set turn on when it still light.
There are also 3 colour settings for those who have preference for Warm, Cool, or Daylight.
The Lumascan light level is quite good, so that it will light up an entry quite well.
The big negative is the lack of time control, while time control tends to be fussy it is a useful feature.
Overall though, I am very happy (so far) with the Lumascan and do recommend it.