Throughout the years, we’ve added many great Father’s Day gifts to our extensive selection of LED products. Because the list is constantly growing, we decided to narrow it down to our top 10 best-selling gifts for dad. Our ideas range from LED products for task, leisure, and work lighting to vehicle LED bulbs and strips. They’re long-lasting, energy-efficient, and are sure to brighten dad’s day.

Electrical contractors and electricians work with electrical wire color codes on a daily basis. But if you’re not one of these professionals, you might be wondering what the different colors of electrical wiring signify.

The simple explanation is that every color used for electrical wiring has a specific meaning, with different colors indicating different circuit types and purposes. Electrical contractors and electricians understand the color codes, but a simple guide can help you understand their significance.

Before beginning, though, it’s important to realize that different countries use different wiring color codes. In some countries, all permissible wiring colors are specified by the applicable governing body, but in others only a few specific types of wiring are required to have specific colors. In those countries, the colors used for some types of wiring are simply established by local practices followed by electrical contractors and electricians. Again, electrical contractors and electricians will be familiar with the wiring colors used in their localities.

So, the meaning of any given wiring color may vary from country to country. It can all get a bit complicated, but here’s a helpful guide to the significance of various colors used for common types of AC (alternating current) electrical wiring in different parts of the world.

American electrical contractors and electricians are required to follow the National Electrical Code (“NEC”) with regard to wiring colors. NEC imposes the following electrical wiring color standards:

In theory, wiring conducting live current in the U.S. is permitted to be any other color, although in practice, electrical contractors and electricians follow these local conventions:

Most countries in Europe, including the U.K., now follow the color conventions established by the International Electrotechnical Commission (“IEC”). These color conventions are as follows:

Electrical wiring in Canada is governed by the Canadian Electric Code (“CEC”). The following wiring color requirements apply in Canada:

It’s important to remember that the above color information applies only to AC circuits. Completely different color standards apply to wiring used in DC circuits.

Do you need more space for a growing family? One of the tradeoffs to buying a larger home is having to pay more in utility costs for heating, cooling and other appliance use. However, advances in energy efficiency mean that you can offset some of that increased consumption. That means you save money and worry less about your energy use, even if you just bought the mansion you always dreamed of.

Bigger Houses and Bigger Households

We like our homes bigger. The average American home size has grown  20 percent since 1980, and we've been filling those homes with ever more electricity-dependent devices, like televisions, computers and household appliances. Fortunately, over 70 percent of the growth in household and building size has been offset by efficiency improvements, according to the Energy Information Administration.

Total energy use by U.S. households inched up each year between 1980 and 2009, the EIA Residential Energy Consumption Survey reports. That is because of various reasons, including more households, larger households and a trend toward bigger houses. However, consumption per square foot actually dropped by 37 percent during that time period -- and if it hadn't, the total increase would have been considerably higher.

Residential energy accounted for 21 percent of total U.S. consumption in 2012 so the cumulative savings are significant. The numbers are astronomical -- residential usage increased from 9.3 quadrillion BTUs (British thermal units) in 1980 to 10.2 quadrillion by 2012 -- and without additional efficiency measures the total would have increased by another 3.6 quadrillion BTUs.

Multifaceted Efficiency Efforts

There are numerous factors driving the efficiency revolution: Stricter consumer appliance standards, local building codes geared toward efficiency and federal tax credits, in addition to awareness outreach programs and labeling efforts like the federal Energy Star program have all contributed to the reduction in consumption per square foot.

If you want to save the most energy, smaller is always better when it comes to houses. There's less space to heat and less to cool. However, if you need the extra space, take heart knowing that technological and behavioral improvements mean that a large house doesn't gobble up nearly as much energy as you might expect.

For more ideas on how to decrease your consumption, ask a home services expert to evaluate your home. He or she can help you find new ways to save no matter the size of your home.

Call local Mister Sparky® for more energy efficiency tips and advice. We're always here to help!