Tag Archives: Amber

Officials warn businesses near beach about lights during sea turtle nesting season

Officials warn businesses near beach about lights during sea turtle nesting season
By Angela Rozier
Updated 9:39 PM EDT May 20, 2015

It’s turtle nesting season and officials in Martin County are concerned.

They are so concerned they sent a letter to representatives at the Publix Supermarket at 900 North Ocean Blvd. on Hutchinson Island in Stuart letting them know the parking lot lights can be seen from the beach.

County officials released a survey pointing out just how far those lights can reach.

Robert Ernest, the chief operating officer with the Ecological Associates Inc. said that’s a problem primarily for the hatchlings because when they leave from the nest they are orienting to the brightest horizon.

“And typically on a dark beach that’s the light reflecting off the ocean so they know how to get to the ocean, and when you have lights that are landward of the nest that can confuse them and draw them in the wrong direction,” Ernest said.

The letter states Publix should lower, reposition or shield the lights so they can’t be visible on the beach.

WPBF 25 News reached out to Publix officials, who issued a statement that reads:

“We haven’t received any official notice of violation. We did install light blinders at this store location and are in the process of permitting for new lighting fixtures as the ones currently in use are rusted. We are also working with the Florida Oceanographic Institute for the best lighting approach.”

County officials say they will also be sending letters to a local condominium and resident also found out to be in violation.

Publix has 90 days to adjust the lights.

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What Color Temperature are Wildlife-Friendly Amber LED Lamps?

What Color Temperature are Wildlife-Friendly Amber LED Lamps?
Posted by Lyndsey
2014

Access Fixtures wildlife-friendly Amber LED lamps are measured in nanometers, not in a specific Kelvin temperature. Kelvin and nanometers, while both referring to colors, do not measure the same thing and are not convertible.
What’s the deal?
Kelvin temperature indicates the perceived color of a light source. Available color temperatures range from 1000K to 8000K. The higher the temperature, the bluer the light will appear.
Nanometers (nm) measure a specific wavelength of light. Kelvin temperatures consist of a nearly infinite number of wavelengths to produce a perceived color. So even if the Kelvin temperature appears blue, it’s actually a combination of wavelengths at different nanometers.
Wildlife-friendly LED lamps are a specific wavelength of 590 nm. Although a lower Kelvin temperature may appear amber, it’s not actually the amber found in Access Fixtures wildlife-friendly LED amber flood lights, LED amber wall packs, LED amber bollard lights and LED amber garage lighters. It’s critical to use wavelengths of 590 nm for wildlife-friendly lighting since this is the wavelength that is not visible to animals affected by light pollution. Humans can see wavelengths between 400 and 750 nanometers.The two color spectrums below include high pressure sodium and 660 nanometers. They are not the same even though the two measures display similar perceived colors. While the Kelvin temperature is made up of many different wavelengths of various nanometers, 660 nanometers is a specific color. This means that a high pressure sodium wall pack may harm wildlife, but an LED amber wall pack will not.

A spectrum showing a 250w high pressure sodium light. Source: www.icmag.com

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