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How much lighting you need depends on the size and characteristics of the area you are trying to light up.
A good way to determine this is to go to your business at night and think like a criminal.
Now assess the lighting levels in these areas.
- If it is dark, it is hard for someone to fiddle with a latch or jimmy a door.
- Dim light provides enough light for criminals to see what they are doing, but not enough for others to observe and detect them.
- Bright light makes it easier for the criminal to break in, but allows for easy observation and detection by others.
- If you are able to read the sub-headlines of a newspaper, the light is bright enough.
Proper lighting should provide visibility and allow surveillance without creating excessive glare or shadows. |