All light emitting from a fixture should be directed downward. Floodlighting and spotlighting should be accurately aimed away from roadways and adjacent property. Lighting should be shielded so that glare is not visible from adjacent property or from the street or highway.

Lower lighting levels provide better vision and require less re-adaptation of the eyes. Excessively bright light spills onto other property and can cause glare even when shielded. Maximum brightness levels should be established and not exceeded.

Motion detector-activated lighting uses less energy and provides better security than constant light. Encourage low level lighting which works better with closed circuit television. Encourage alarms and other security measurers -- more successful than constant lighting.

Light should not spill onto other's property unless they want it too. Fixture design, placement, moderation of intensity, and aim can help provide needed control from light trespass.

Signs should only be lighted internally or from lights mounted on top pointed downward. Billboards should not remained lighted overnight. On-premise signs should not stay lighted late or overnight after a business closes. Dark colored signs with light letters reflect less light than dark letters on light signs. Lights that flash, pulse, rotate, move, or simulate motion can annoy and distract.

Only lighting intended for security should be on all night if the business is closed.

No light should be installed such that it produces excessive glare or excessive brightness that interferes with the vision of drivers and pedestrians.

Sports lighting should be allowed more brightness for the playing field, but directed downward and not allowed to spill into other property.

Christmas lighting, porch lighting, and landscape lighting are usually low intensity lighting not a problem unless it creates dangerous glare or nuisance.