The Point Light has a specified range, so you should place the object in the world at the location where you want the light to appear.
Set the Point Light object’s Range property to specify the range of the light source. You can specify positive or negative values. The object’s boundary is a sphere, which makes this object ideal for lighting outdoor areas.
Set the Point Light object’s Attenuation property to specify the brightness of the light source in the X, Y, and Z directions of the world. You can specify positive or negative values. If the Ambient and Diffuse property values specify different colors, the Attenuation property can alter the mix of the two different colors.