Insect Vision: Ultraviolet, Color, and LED Light, Marianne Shockley Cruz and Rebecca Lindner from the University of Georgia’s Department of Entomology write, “Experimental work supports the idea that color perception exists in insects and that they are especially responsive to the shorter wavelengths of the visible spectrum and UV light.” Wavelengths are measured in nanometers, and shorter wavelengths of light (less than 550 nanometers) can indicate ultraviolet (UV), blue, or green colors. Cruz and Lindner also cite work that confirms the correlation between UV light from the sun and moon and how certain bugs navigate Earth. Another point to remember about bugs is that certain types, such as mosquitoes, are attracted to heat and have thermal receptors to help them find it. All of this information is helpful for determining why bugs flock to certain light sources.

The color that is emitted from a light source is important because of its ability to attract bugs. As previously stated, shorter wavelengths (UV, blue, and green light) are more visible to bugs than longer wavelengths (yellow, orange, and red light) and, therefore, will draw them closer. Incandescent, compact fluorescent (CFL), halogen, and high-intensity discharge (HID) lights emit UV radiation that is attractive to bugs, and since certain types of bugs navigate by UV light from the sun and moon, a closer, brighter source of UV light can disrupt their orientation and draw them in. LEDs produce very little to no UV light, which makes them less visible to bugs. However, it is still possible for an LED bulb to produce shorter wavelengths of light (bluish-white/cool white color), which will be more attractive to bugs. Therefore, when browsing for LED lights that will attract less bugs, it’s important to choose a fixture that emits more wavelengths that are above 550 nanometers, such as warm white, ultra warm white, or yellow lights.

CCT) instead of nanometers, it’s easy to tell if the bulb will be more or less visible to bugs. CCT is measured in Kelvin (K), and different temperatures on the Kelvin scale represent different colors. An LED bulb with a CCT below 3600K will emit warm or ultra warm white light that’s not easily seen by bugs. Bulbs with CCTs of 3600K and above will emit natural or cool white light that is more likely to attract bugs.

Incandescent, halogen, CFL, and HID bulbs waste most of the energy they consume—as much as 90 percent—in the form of heat. Bugs with thermal receptors can sense the heat released by these light sources. LED bulbs produce a minuscule amount of heat, which makes them less appealing to bugs.

Bug lights are simply light bulbs with a yellow coating that decreases the color temperature of emitted light. Because of the coating, bulbs will emit a peak wavelength of light that is around 550-600 nanometers. However, you don’t need a yellow-coated bulb to reduce the presence of bugs. LED lights that emit warm-colored illumination, such as yellow malibu light bulbs for landscape applications, or From top left to bottom right: incandescent bug light, yellow LED strip lights, yellow LED malibu light bulb installed in landscape fixture, and gold-tint LED filament bulbs

Ecologist Michael Justice performed an experiment to determine the type of residential light that attracts the least amount of bugs. He used six lighting types inside of an insect trap each night during the summer. Justice also made efforts to equalize the effects of weather and the moon’s irradiance. His LED Z-Bug Bulb™ from NEBO is a bug zapper and an LED bulb in one. The bulb emits white illumination from its top and ultraviolet (UV) light from its caged center. The UV light attracts mosquitoes and other insects toward the bulb’s high-voltage electric grid and kills them on contact.

Because different types of bugs see different wavelengths, it is never guaranteed that an LED light won’t attract them. However, most bugs are attracted to short wavelengths of light and are especially drawn to UV light; they can see it better, and some use it for navigation. Bulbs that emit more short wavelengths of light (cool white/bluish color) will attract more bugs. Lights that emit a majority of longer wavelengths (yellow/orange/red colors) are less visible. Heat can also draw bugs into an area. LED lights produce little to no UV light and a minuscule amount heat, which makes them less attractive to bugs—so long as they emit longer wavelengths of light.

The band has:

The DMB also launched the Green Music Group, a high-profile environmental coalition of musicians, industry leaders and music fans using their power to bring about widespread environmental change in the music industry. Other members of this environmentally- conscious coalition of musicians include Maroon 5, Willie Nelson and Sheryl Crow.

Hear the Band and Get in Tune!  Go Green and Sustain your Home and Community with Positive Change…

*Energy SMART tm refers to items that use less energy and conserve natural resources as compared to similar products that serve the same purpose.  Energy Smart also refers to the ways in which we consume electricity that are less costly energy-wise and generally more efficient.

** Energy Startmis a United States government program created in 1992 by the Environmental Protection Agency (EPA) for the purpose of reducing energy consumption and green house gas emissions by power plants.  This voluntary labeling program has grown worldwide to include increasingly more consumer products. ENERGY STARtm ratings are given to products that meet a set a strict regulation standards for energy-efficiency and cost-savings.

***Revere the Dark Sky: Certain municipalities throughout the United States have passed laws and ordinances requiring outdoor lighting fixtures on newly constructed homes be “Dark Sky” compliant.

Lighting plans with “dark sky compliancy” provide for an unobstructed view of the stars and planets, protect biorhythms of life and prevent light pollution.  Be sure to incorporate shielded fixtures into your outdoor lighting scheme and position fixtures to avoid glare and superfluous light from interfering with your view of the nighttime sky or shedding unwanted light toward your neighbors’ property.

Continually searching for ways to protect the natural beauty of the universe, the lighting industry and modern technology go hand in hand.  Splendid illumination and thoughtful lighting plans are essential to this quest.

Enjoy the best in outdoor and landscape lighting, as well as fabulous lighting for kitchen and bath.  Visit a Capitol Lighting showroom or shop 1800lighting.com to view outstanding green arrivals to renew your home for sustainability and a cleaner America.

One of the biggest challenges faced by electrical engineers, while designing and installing circuitry, is ensuring that electrical fittings can accommodate different plugs. The terms ‘electrical outlet’ and ‘electrical receptor’ are interchangeable, and they do a lot more than just provide electrical connectors for devices to plug into.