[Summit] lights left on all night

[Jeffrey Cavanaugh]

Continuous lighting let's a thief plan to stay in the shadow.  Motion
sensor lights tend to catch them off guard.  At best continuous lighting is
no more effective than motion sensor and motion sensor has many other
benefits.

On Mon, Nov 5, 2012 at 9:17 AM, Martha Fraenkel <mfraenkel at gmail.com> wrote:

> There is alot of private lighting  that stays on all night for security.
>  But the cop I talked to recently said that the vast majority of the
> property crimes he sees are so fast that lighting is irrelevant.
>
> Anyway,  there is a big down-side to all night lighting.  Artificial light
> at night has negative health consequences.  Among these, it raises the risk
> of breast cancer by interfering with tumor suppressing hormones, including
> melatonin.   See info from the American Medical Association (as mainstream
> as it gets)  at http://www.ama-assn.org/**resources/doc/csaph/a12-**
> csaph4-lightpollution-summary.**pdf<http://www.ama-assn.org/resources/doc/csaph/a12-csaph4-lightpollution-summary.pdf> And it makes it hard to sleep.
>
> A better option is to replace all-night lighting with motion-sensitive
> lighting.  Also saves energy.  Or, you can use  cut-off or"shielded"  light
> fixtures that send light down only, so that your light does not illuminate
> your neighbors.   It's only fair to ask your neighbor before you illuminate
> their property.
>
> Martha
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