Community Insider Fall 2017 - Page 30

LED LIGHTING HAS COME HOME TO STAY By Kimberly Weiss L ED lighting has made a home for itself in California, and is here to stay. Supporting California’s reputation for leading the country and the world in environmental progress, the recent 2016 California Title 24 update create lighting efficiency requirements that can currently only be met by LED technology. trespass, and skyglow. Most lighting ordinances require fully shielded fixtures, no light above the horizontal plane, maximum lumen levels, and more. Before undertaking any lighting improvements, check to see if the local ordinances and verify that the project meets the requirements. 2. Light Poles/Street Lights. Replacing HID street lights with LED lamps can be done but isn’t the best solution, unless your pole uses a vertical lamp with no fixture distribution, such as a standard acorn fixture. Engineered retrofit modules designed for specific fixtures are a good compromise. Better yet, complete fixture replacement will provide the best light distribution and output with little glare or pollution, a whole new updated look, and about twice the life expectancy at only slightly higher pricing than a retrofit. 3. Engineering. Remember that when your community was built, the lighting was designed by a licensed engineer, according to accepted principles. Considerations such as transitional light, ingress/egress, lumen levels, traffic patterns and placement were likely all considered. Changing your lighting to LED will change the lumen levels and light spread, even if you use the existing fixtures. Depending on the age of your community, needs may or may not have changed, but consideration needs to be given to the original engineering in deciding whether to re-design lighting or conform to modern light sources and types or to accommodate the light levels provided in the original engineering. LED lighting will be historically documented as one of the top advancements of the 2000’s as evidenced by the award of the 2014 Nobel Prize in physics going to three scientists for the invention of LED lighting. Soon the California Title 24 light bulb efficiency requirements will be the law of the land, since the EPA passed a rule in January of this year that will go into effect in 2020, creating minimum efficiency levels for general purpose lamps that are currently only attainable by LED. Soon virtually all HOA lighting will be converted to LED. It has been an enormous effort for lighting designers to determine new best practices customized for LED sources, but the endeavor has been worthy as the lessons of yesterday can maximize the benefits that communities can realize today. To get started, take a peek at the current hot topics in LED conversions. 1. Local Outdoor Lighting Ordinances are a tool used by local governments to promote responsible lighting practices. They can be used to control light pollution such as glare, light 30 | SAN DIEGO COMMUNITY INSIDER | FALL 2017 4. Palomar and Mount Laguna Observatories. Orange colored low pressure sodium light is still the observatory favorite, but it is admissible to replace the low-pressure sodium lamps with white LED, as long as the lumen levels are low enough and the fixture is fully shielded (depending on fixture type, use, and proximity). See your lighting consultant for advice because switching from low pressure sodium to a low-lumen LED may mean that you need to add fixtures due to light spread considerations. 5. LED Light Bulbs have become very popular and are a great, low cost solution for many applications, such as the wall mounted fixtures at front doors. If you do convert your front door fixtures to LED, it is recommended to upgrade all fixtures in the community at once, rather WWW.CAI-SD.ORG