LED streetlights are great for the environment. They consume much less energy than standard high-intensity discharge (LED streetlights. What some cities have failed to consider, however, is that while LED streetlights are capable of emitting different colors of light, not every color should be used in public outdoor spaces. Bright blue-rich white light can cause some issues for residents, local wildlife, and night sky visibility. When it comes to streetlights, the warmer the color/correlated color temperature (

studies showing that it can even aid in IBS as well as migraine and cancer prevention.

Throughout the day, light changes from a warm white color at dawn to natural white then to a cool white in the afternoon, back to natural white, and eventually to an ultra warm white color at sunset. Our bodies are used to this cycle of light. Artificial lights that deviate from the natural lighting cycle can throw off our circadian rhythms. The National Institute of General Medical Sciences states that, “Circadian rhythms are physical, mental and behavioral changes that follow a roughly 24-hour cycle, responding primarily to light and darkness in an organism’s environment.”

According to healthybuildingscience.com “. . . different types of light trigger different physiological effects. Blue/white light, akin to a bright midday light, suppresses melatonin and increases serotonin, this light is great for activity. Conversely red/orange light triggers melatonin in preparation for going to sleep. If everything is in balance, the body will generate dopamine, serotonin, cortisol and melatonin in the right quantities at the right time of day.”

On their website, the IDA cites important information from a report, this happens “. . . because blue light scatters more within the human eye.”  While it’s not directly causing harm to someone’s health, glare decreases driver safety and can lead to traffic accidents.               

At night, blue light used outdoors can also wreak havoc on ecology. Introducing light with a CCT that’s close to daylight essentially changes the daily cycle that plants and animals are used to. They depend on this cycle of light and dark for hunting, reproduction, sleeping, migrating, and protection. Nocturnal animals have suffered greatly from cool white light at night; the IDA

Because blue light has a larger reach, cool white LED lights used outdoors at night can contribute to light pollution, or brightening of the sky. This decreases the visibility of stars and can have a negative effect on astronomical research. If cool white LED lights are used, they should be shielded or aimed directly downward to prevent light pollution.

Warm white LED street lights and parking lot lights—with a CCT of 3000K or less—are a much better option for public outdoor areas. They emit a much smaller portion of blue light—which is unnoticeable to the eye—and are currently the best options available for street lighting.

Click the photo below to see our line of warm white LED streetlights.

Chances are, the computer, tablet or phone that you are using to read this post is powered by electricity produced by coal, natural gas or nuclear energy. Currently, the overwhelming bulk of power for the nation's electrical work is generated in large, centralized plants that use those three fuels. However, with the rise of renewable energy sources as well as a transition to modern and responsive grid technology, the country's electric infrastructure is poised to move toward a more dispersed generation system. Read on to learn what that means for you.

Huge Generating Plants Vulnerable to Disruption

According to the Energy Information Administration, 39 percent of the nation's electricity comes from coal, 27 percent from natural gas and 19 percent from nuclear fuel. In addition to being non-renewable, the three fuels that make up 85 percent of our electricity production also work best in massive power plants that produce large amounts of power, which is then sent out long distances through the grid to power our electrical work.

This large-scale generation has advantages – economies of scale, for one – but it is also inflexible and can be subject to disruption. An event that causes a plant to shut down or interrupts its distribution, for example, could leave entire communities without power. The grid is also, in effect, a one-way street – electricity leaves the generating plant and arrives at your home, where it is consumed.

Renewable Energy and Advancing Technology

However, several changes are occurring that will create a more dispersed and flexible generation system to power our electrical work. For one, the share of renewable energy sources, which don't require large generating plants, is continuing to grow. Solar panels are popping up on rooftops across America, while wind power could provide as much as a third of the electricity in the country by 2050. In addition to being far better for the environment than fossil fuels, these power generators can scale down to even a household-by-household basis.

The other change that is facilitating a more dispersed power generation system is an advance in technology in the electric grid, which allows power to flow in two directions, both to your home and away from your home. That means that electricity can be generated almost anywhere and then zipped along the power lines to wherever it is needed. Breakthroughs in power storage technology will also help guide us toward a future where the power for our electrical work is created when and where it's needed, freeing us from the constraints created by large, inflexible power plants.

Generate Electricity at Your Own Home

If you want to learn more about adding renewable power sources to your property, or need any other electrical work done, call up an expert electrician today.