The jargon in the lighting world can often get mixed up. Color rending index (CRI) and color temperature are one of the most to be confused with each other. This post is going to clarify what the different between CRI and Color Temperature is so we can end this confusion.

Here is a short explanation why the CRI is more important to focus on before deciding for a color temperature. The color rendering index is the most important feature in certain applications as it determines the appearance of objects, faces and spaces. If this aspect is not relevant, the CRI can be as low as 60 or even 40.

The color rendering index (CRI) is a numeric evaluation of the light color accuracy with the reference of daylight (numbered 100). Sunlight and its broad spectrum will enable a person with normal vision to see 68 different colors in a color chart, but if the chart is illuminated by a light source of one wavelength only, each color from the color chart will appear as a different brightness of that one color. Some activities, such as walking or operating a vehicle, do not require the accurate perception of surface colors while others such as product selections in shops benefit from better color rendering features. Look at the application of the lighting installation. If the visual tasks are easy to perform the CRI doesn’t need to be high. In areas like offices, handcraft manufacturing and surgery, the requirements for visibility, contrast, visual guidance as well as face recognition need to be provided by a lighting system with a good CRI of >80 or even >90.

How much is the light color affecting the space? The term color temperature describes the temperature of objects by which they emit light, modeled through the “blackbody radiator”. When increasing the temperature of a “blackbody”, it starts to emit visible light in a continuous spectrum. The filament of a 60W incandescent lamp heats up to about 3000°F, as a result the lamp emits light with a color temperature of 3000K. Many of our artificial light sources do not create light by heating up a material until it glows like an incandescent lamps. Instead of creating a continuous spectrum, they generate an assortment of color emission lines. A blackbody color temperature cannot be directly given to this non-blackbody type of emission, generated by high intensity discharge and fluorescent lamps for example. For those light sources, a correlated color temperature (CCT) is indicated, based on the blackbody color temperature. A cool white fluorescent lamp has a CCT of about 5000K. The lamps light spectrum is different from a blackbody one but has the same temperature.

The light color influences the atmosphere in a space. The more cozy the ambiance the warmer the light color (lower color temperature) should be and the more dynamic the scene the cooler the light source (higher color temperature). The CRI is the most important factor to watch when choosing light sources. How good is the light source representing faces, colors and contrasts? The easier the visual task and perception the lower the CRI can be. The color temperature needs to be watched second, it is supporting the space’s atmosphere.

Conclusion

There you have it; an explanation of both the Color Rending Index and Color Temperature.

Have anymore questions or thoughts? Comment them down below!

Are you sick and tired of paying an arm and a leg for your electricity bills? Congress is considering legislation that could bring you some relief. A bill was introduced to the House of Representatives this summer that would update the Title I Home and Property Improvement Loan Program, which helps consumers make efficiency upgrades to their homes. The new bill is intended to help homeowners invest in solar energy to power their home electrical work. Read on to learn more about this legislation and how it can help you.

Upgrading Your Electrical Work

The Title I home loan program has been around since 1934, aimed at helping homeowners with capital for home improvement upgrades. Currently, Title I is working through the Federal Housing Authority's Power Saver program, designed to promote clean energy and fight climate change. Home energy efficiency upgrades like photovoltaic solar panels, therefore, are a natural fit for the program.

The legislation currently in front of Congress, called the “Solar and Water Efficient Homes Act,” would update the Title I guidelines to better accommodate modern technologies, as well as increase the number of loans that are available and reduce the bureaucratic red tape that has bogged down the program in the past.

Bringing the Capital to You

Upgrading your home can require significant costs that are beyond the reach to many low and middle income families, so the Title I program provides capital that allows homeowners to realize energy savings immediately. Those who are eligible can get loans of up to $25,000 to make a variety of efficiency upgrades to their electrical work, most notably by installing solar panels. The program will also help homeowners purchase new HVAC systems, beef up their home insulation, buy new water heaters and even install geothermal heating systems.

“Title I loans have helped hundreds of thousands of homeowners improve their homes,” Rep. Jared Huffman (D-California), one of the bill's sponsors, said in a press release. “It’s time we make it easier for homeowners to invest in energy efficiency upgrades and improve water conservation, creating good local jobs, and helping the environment.” The legislation also hopes to spur job creation by encouraging consumers to spend more money on home services labor and equipment.

Efficiency Arrives at Your Home

When it's time to boost your home efficiency, Title I is there to lend a helping hand – and if Congress passes the Solar and Water Efficient Homes Act, the incentives will be even stronger. If you want to learn more about the Title I loan program, or need any repairs done on your home electrical work, contact a qualified electrician today.

It is that time of year when the temperatures drop and things like spiders and mice are seeking shelter in your home. You don’t want to share your living space with the critters and they know that. They will stay hidden for the most part, but that means they are somewhere you can’t see what damage they are causing. Mice will chew anything and everything and they don’t care if they get a little jolt when they bite through a wire. Chewed wires can spark and create an extremely dangerous situation in your home. An electrician in Burbank has a few tips to help you protect your home from the damage a rodent can cause. The team at The Electric Connection is on standby and ready to help you.

Rats are much worse than mice, but both are equally troublesome. They both love the heat the insulation in the walls provides and will make their nests there. These nests often encompass wires that run warm. An overheated wire is another fire hazard. The following will help keep your wires safe from gnawing rodents.

*Your Burbank electrician suggests you hire a pest control service to ensure the rodents stay out of your house. The best cure is prevention. Take action at the first sign of an infestation. If you see one, there are plenty more where that came from.

*Seal up any gaps around the foundation of the home. Mice can squeeze through a hole or crack that is a quarter of an inch thick. Steel wool is a quick and easy fix for small holes.

*Regularly check your crawlspace and attic area for signs of rodents. Use traps if you suspect you have a problem.

*Schedule an electric safety inspection with an electrician. Burbank homeowners who want to know their wiring is safe will feel better once an electrician checks for any issues.

Give The Electric Connection a call today and schedule your inspection to determine if you electrical wiring has already been compromised by a rodent infestation.

Your electric bill may be completely manageable and affordable. However, wouldn’t you like to learn how to save a few extra dollars every month and do something good for the world at the same time? Just because you can afford your current electric bill, doesn’t mean you can’t make adjustments around your home that will reduce the amount of electricity you use. A Santa Monica electrician is here to tell you about a few things you can do around your house to reduce the amount of electricity you use. The folks at The Electric Connection would love to share their knowledge with you.

Of course you know about turning off the lights when you are not in the room and turning off appliances when you don’t need them, but there are even more things you can do that will certainly add up to big savings for you and less burden on the power grid. It is no secret, our booming population has put a serious burden on our current power grids and blackouts from time to time during peak usage times are not uncommon.

You can lessen your impact by changing out your old, energy hot incandescent light bulbs to the more energy-efficient CFLs or LEDs. The CFLs are the spiral shaped lights that can easily be exchanged in your existing light fixtures. If you have a light fixture that will not accommodate one of these environmentally friendly options, talk with your electrician. Santa Monica residents can update their home lighting by replacing old fixtures with new, more modern and energy efficient fixtures.

Placing LED lights under your kitchen counters gives you plenty of light to see what you are doing and is extremely inexpensive to use and the fixtures are relatively cheap as well. If you are interested in doing your part to make the world a better place, give The Electric Connection a call today and schedule your light fixture upgrade.