What you can do to reduce the problems of light pollution
switch off lights when not required for safety or security. For example, switch off advertising and decoration lighting between 11pm and dawn
direct the light downwards to illuminate the target and reduce glare
use specifically-designed lighting equipment which reduces the spread of light
do not "over illuminate", as it can be unpleasant and a waste of money
reduce glare by ensuring the main beam angle is directed towards the observer and is kept below 70º
the higher the mounting is, the lower the main angle beam needs to be.
Domestic and small-scale security lighting
dassive infrared detectors can be used if correctly aligned and installed. A 150W Tungsten Halogen lamp can be used. 350/500W lamps create too much light, more glare and dark shadows
you can use low-brightness lighting for all-night use (such as porch lighting)
energy-efficient light bulbs will reduce the amount of electricity used in providing the lighting required.
