Sensor range on security light

[numb15]

Hello,
I’m thinking of buying the security light but my driveway is quite narrow, my option is to install the light with a frontal view of people approaching the house. I know sensors are better at picking out motion moving left to right rather than approaching the sensor from straight on. Can anybody give me an idea of the distance at which the light will trigger if approaching it straight on? I’d be installing it at a height of roughly 7 feet. thanks

[jguerdat]

My light on the driveway points more or less straight down the drive and it will pick up the car driving in fairly quickly. Of course, it's picking up the car instead of a person.