Spring has sprung. The weather is getting nicer. Time for a new pair of sunglasses?  It was time for me. Even though sunglasses are not a regular topic of our lighting blog, I felt that my recent experience picking out new sunglasses warranted this post. I was disappointed at the number of myths about sunglasses that were told to me by multiple, yes, multiple, supposedly knowledgeable sales people. So, I figured that it might prove useful to others if I shared my experience and busted these myths with this sunglasses buying guide. 

Myth #1: UV Protection In Sunglasses Not Important

Fact: The sun’s ultraviolet (UV) rays can do several very bad things to your eyes and the area around your eyes: harm the lens, retina, and whites of your eyes, cause corneal sunburn and blisters, increase your chances of getting cataracts, have been linked to macular degeneration (vision loss due to damage due to a small spot near the center of the retina called the macula), cause skin cancer around your eyes including your eyelids, and help cause unwanted wrinkles and skin thickening around your eyes. WOW!  There’s a lot more but it would take more than this short response to get even more technical.

Myth #2: Sunglasses With Glass Lenses Remove All UV Radiation

I visited a small boutique optometry store and spoke to someone with 40 years of experience. He told me that if a pair of sunglasses has glass lenses, then they remove all UV radiation. Not true.

Fact: Glass of almost any kind (building windows, car windows, a pair of clear glasses) can remove some but not all of the UV radiation that reaches your eye. Ultraviolet (UV) radiation is made up of three segments: UVA, UVB, and UVC. Fortunately for all of us UVC radiation is blocked by the earth’s atmosphere, ordinary glass blocks out UVB radiation (the main sunburn ray that causes skin cancer and sun damage) but allows UVA to pass right through (UVA rays penetrate the skin more deeply and can also cause skin cancer, wrinkles, and premature skin aging). However, it is possible to add a special UV-blocking film to ordinary glass or use specially formulated glass (or plastic) to block out 99.9% of UVB and UVA radiation.

Myth #3: Polarized Lenses Also Mean UV Protection

Two representatives in the optical department of a national chain of retail stores told me that if a pair of sunglasses has polarized lenses, then they also provide UV protection. Not true.

Fact: These two features of sunglasses are entirely different from one another; one feature does not imply the presence of the other feature. Polarized lenses minimize direct and indirect glare from the sun; they allow you to see more clearly when the sun’s rays are reflected off flat, smooth surfaces like water, road pavement, and car hoods. Polarized lenses are not designed to reduce the ultraviolet radiation that reaches your eye.

Myth #4: More Expensive Sunglasses Have The Best UV protection

Fact: This is not always true. Relatively inexpensive sunglasses can sometimes block 99%-100% of UV radiation but they are not easy to find. However, you should be careful about still another problem – inexpensive sunglasses sometimes are non-uniform in thickness and have poor optical quality. This can mean that they sometimes distort the shape or clarity of an object, depending on what portion of the lenses that you look through.

Myth #5: Sunglass Tint Is Not Important

Many people think that the tint of the sunglass lenses is not that important. That it is purely an aesthetic decision based on your personal preferences and the “cool factor” you’re looking for.

Fact: The tint or hue of the sunglass lenses plays an important role in the perception of colors. Yellow or rose tinted lenses generally can make it difficult to distinguish different colored traffic lights. Gray, green, and brown lenses, however, minimize color distortion and are a better choice when you’re driving a vehicle. Some specialized sunglasses can have a special tint that are designed to enhance your performance of a specific task or sport; e.g., at least one sunglasses manufacturer has created a whole array of lens hues, one of which can possibly improve your tennis game by enhancing the color of the tennis ball.

Myth #6: Size Of Sunglasses Not Important

Most people choose the size of their sunglasses on whether or not they think they look “cool.” Thus, they think that size is not important.

Fact: Size, at least when it comes to sunglasses, does matter. It’s this simple: The larger the sunglasses, the broader the protection of your eyes, eyelids, and the skin around your eyes against UV damage. However, you can have all of that and still look “cool.”

Enjoy your spring and summer and enjoy your new sunglasses.

NEMA or the National Electrical Manufacturers Association has developed rating standards for electrical enclosures to ensure safety, compatibility and proper function of electrical products. These ratings provide the standards that help in defining the types of environments in which various electrical enclosures can be used. NEMA ratings frequently indicate a fixed enclosure’s ability to withstand certain environmental conditions.

NEMA ratings are mainly applied to fixed enclosures and are rarely applied to mobile devices. They have extremely stringent testing requirements to verify if the enclosures can be protected from external ice, oil immersion, corrosive materials, dust, water, etc. Each NEMA rating has different specifications; however, all of them are designed to protect electrical components, personnel and property from damage.

Importance of NEMA ratings

If you use any kind of electrical enclosure, it is important that you check its NEMA rating before installing it. There are a number of reasons why it is important to do so. Let us look at three reasons why NEMA ratings are important.

The following facts may surprise you!

Many Famous Individuals Were Electricians First

That’s right. The electrical field has attracted many brilliant individuals who later went on to make their mark on the world stage. Before Sun Records discovered Elvis, he had trained as an electrician. Just before joining The Beatles, George Harrison was an electrician’s apprentice. Think Mr. Bean, the British comedian, is all fun and games? In his other life, this actor, whose given name is Rowan Atkinson, holds a Masters degree in Electrical Engineering from Queen’s College, Oxford. Even Alfred Hitchcock, Master of Suspense, studied electrical engineering beginning at age fifteen.

Basic physical fitness is not a prerequisite for every job. However, electricians do need to maintain some level of physical ability in order to climb ladders, lift and carry heavy equipment, move through small crawl spaces, break through walls and dig holes. Sound like superhuman tasks? Indeed. To keep up with this type of activity, day-in and day-out, electricians must be both strong and flexible. In addition, their work demands tolerance of all weather conditions. Whether freezing, hot and humid, strong winds, or a rainy downpour that they’re facing that day, electricians have to be ready, and healthy enough to work, whatever occurs.

A master electrician studies, both in a classroom and on the job, for a minimum of eight years. He or she is the very best at the craft of bringing power to homes, places of business, and industrial locations, and has mentored with other masters, worked in the field, and taken numerous classes to get to achieve a level of expertise. Medical doctors, through attending college, medical school, and a residency, also train for at least eight years. So your electrician, in the field of electrical engineering, is as trained an expert as the individual to whom you entrust your health and well-being.

Master electricians are highly-skilled individuals who keep your home, business, and even public spaces safe and operational. Whether your project requires commercial, residential, or industrial-level service, our team is fully equipped to install, repair, or maintain. Call us!