PROTECTING COASTAL HABITATS WITH TRUE AMBER LED LIGHTS
WHY AMBER LEDS?
Research has shown that sea turtles are less affected by lighting within specific wavelengths. Long-wavelength lighting such as Amber LEDS are less disruptive than white light. Typical area and site lighting producing white light contains higher blue content and can confuse baby hatchlings who rely on moonlight to guide them toward the water. In a 2000 STC study at Gulf Islands National Seashore, 45% of the nests hatched were disoriented by the lights from the neighboring shoreline buildings. Amber LED sources that are low-glare and properly shielded help minimize this confusion. See the comparison below.
TURTLE-FRIENDLY LIGHTING THAT MEETS THE STANDARDS
According to the Florida Fish and Wildlife Commission (FWC), turtle-friendly luminaires must limit short wavelength light under 560 nanometers. The table below shows the amount of energy emitted at each wavelength for a typical 5000K LED source showing significant energy (36% of total) emitted below 560nm which is highlighted in blue.