Posts Tagged ‘light bulbs’

LED Lights

Monday, December 13th, 2010

LED lights or Light Emitting Diode lights are solid state lighting units that are made up of a grouping of smaller units, operating using a semiconductor diode that produces an ‘electroluminescence’ effect to create the light. Although LEDs were invented in the 1920s they weren’t really produced in a practical form until the early 1960s. LED spotlights can provide a great alternative to halogen lamps. Higher wattage versions of LED spotlights e.g. 3 watt, can be used for normal area lighting, and even lower wattage (2 watt) can be used for accent lighting. If you haven’t really thought about using Led lights, or know little about them, her are a number of great reasons for using them for your home, business, or even vehicles.

As previously mentioned, these lights don’t use heated filaments, or gas and filament combinations to create light, and unlike incandescent bulbs they don’t produce much heat at all. This gives their application even wider scope, and it means that LED spotlights for instance aren’t likely to damage precious / delicate items and surface they’re placed next to. Also, LEDs don’t contain / give off toxins e.g. mercury, which is good for us and our environment.

Perhaps their greatest and most prominent feature is their ability to save energy and keep doing so over a much longer period than incandescent bulbs. Most of us are used to buying (relative short life cycle) incandescent bulbs which seem cheap to purchase. Although LED lights have a higher purchase price due to the expensive sapphire substrate used in their production, their life cycle is likely to be 50 times longer! If you think of how much it is to purchase them with that in mind, you’ll see that they may actually work out to be cheaper.

LEDs have a much higher efficacy than incandescent bulbs – they produce more light relative to the amount of energy used to produce it – this makes them a highly efficient source of light. For example, because they produce more lumens per watt, a 13 watt LED lamp will produce the same lumen value as a 40 watt incandescent bulb, the implication is that less power is needed to do the same job, thus LEDs are ENERGY SAVING – your electricity bills could be lowered by using them.

Environmentally their energy saving properties also translate to less CO2 being produced to run Led lamps compared with incandescent bulbs. Using the 13 watt LED and 40 watt incandescent example again, the LED lamp could produce one third less CO2. Just think of the reduction in carbon footprints of homes and offices if LED lamps were used to replace other types of bulbs and lamps.

As well as lasting a long time, saving energy, and having a much more positive environmental impact, LED lamps are generally much stronger and more robust than their incandescent counterparts. Even though they’re robust, they can also be made into very small sizes, which can make them ideal for accent lighting applications. LEDs light up more quickly switched on relative to other types of lamps and bulbs, and when they finally reach the end of their useful life they tend to dim gradually rather than instantly breaking. They work particularly well in situations where lights are turned on off frequently – combine this with their high output, long life, minimal maintenance requirements, flexibility and low running costs, and you’ve got something with incredibly positive potential for commercial and domestic settings.

LED Lights

Monday, December 6th, 2010

Energy saving bulbs are quickly taking over the light sockets of the world. Whether by personal choice or governmental push, these energy efficient light-producing bulbs will soon provide much of our illumination. There are different ways to conserve energy including compact fluorescent lights and also using solar power. Another way is LED, which stands for light emitting diodes. Using LED-powered energy saving bulbs are a great option because they are durable, efficient, and have a long life.

The first light bulbs were extremely fragile and sometimes burst while in use. Through the years the glass became somewhat stronger but it was still breakable. LED energy saving bulbs are more durable because they are made out of plastic and do not use fragile glass and filaments. And because they are solid, they can withstand bumping and extreme movements. Because of this inherent sturdiness they are able to be used in fixtures that a traditional bulb could not tolerate. Examples include instrument panels and in electronic equipment, which are often jostled but whose small parts are difficult and expensive to repair.

A second reason for switching to LED is because they provide very efficient lighting. LED lights are often clumped together, and LED clusters have had as many as 180 bulbs. If used with diffuser lenses, they can produce a wider beam of light. Studies show that LED energy saving bulbs use one-tenth of the power of a regular incandescent bulb. You could light nine LED bulbs with the same amount of power needed to light one traditional bulb. So depending on your lighting use, it would be possible to light a whole house with LED bulbs that it currently takes to light one room with a traditional bulb. In many US cities, traditional traffic lights are being refitted with LED bulbs and these municipalities expect to see an approximate 80% reduction in electricity costs. As they require less power they are also ideal for remote areas, helping to reduce the number of generators and electric lines.

Another incentive for switching to LED energy saving bulbs is that they have a long life. Because they conserve their energy so well and do not build up heat, they ultimately last longer. Some studies conducted show that you could burn a LED bulb for twenty-four hours a day, seven days a week, and it would take about seven years to burn out. They are even longer lasting than compact fluorescent lighting, lasting up to ten times longer.

Bright Ideas Energy Saving Light Bulbs

Monday, October 18th, 2010

As environmental damage is increasingly on the social and political agenda, BLT Direct says that making a difference can be as easy as switching from one light bulb to another. Energy efficient bulbs may not be a new innovation but it’s surprising how many households have yet to make the change. Using an energy efficient bulb in the place of a standard light bulb reduces CO2 emissions and saves energy. In fact, if every household in the country used just one energy efficient bulb, the energy saved would be enough to light up Briton’s streetlights for a whole year.

If you’re still not sure about energy saving bulbs and how they can help reduce your electricity bill and do your bit for the environment, read on…

Why are energy saving light bulbs better then normal bulbs?

Energy saving light bulbs work much more efficiently than standard bulbs. A traditional bulb wastes energy by producing heat as well as light. An energy saving bulb however works more like a fluorescent tube. The electric current passes through the gas in the tube, lighting it up without producing excess heat.

Do I need to replace like for like If I Switch to Energy Saving?

No. Because energy saving bulbs work more productively they use around a quarter of the electricity. This means you can replace a normal 60W bulb with a 13-18W energy saving recommended equivalent.

Will An Energy Saving Bulb Really Save Me Money?

Yes! The savings from an energy saving bulb are twofold. Firstly, because they waste less energy and use less electricity, the savings on your electricity bill are substantial. Energy saving light bulbs last up to 12 times longer than ordinary light bulbs and can save you £9 per year in electricity (and 38 kilograms of CO2 ) or £100 over the bulbs lifetime.

Secondly, as energy saving bulbs are built to last, you need to replace them less frequently, saving money on the cost of new bulbs.

But Don’t Energy Saving Bulbs Cost More?

Energy saving light bulbs are more expensive than traditional light bulbs when initially purchased. However, in the long term the savings on the electricity bill and lower replacement costs make it a cheaper option.

Can I Use Energy Saving Bulbs With Existing Appliances?

Energy saving bulbs can be used with older appliances such as lamps. In addition, you can now also buy low energy light fittings which will only take low energy light bulbs. These use a ballast

Each to Their Own!

Monday, October 11th, 2010

Each light bulb has its pros and cons. Certain bulbs work better in different spaces of a home. Take a closer look at the different light bulbs to see where each should be used.

The incandescent bulb is the most commonly used light bulb and usually the least expensive. It has a warm, inviting quality and is complimentary to skin tones and psychologically appealing. Incandescent bulbs usually last between 700 to 1,000 hours and can be used with a dimmer; however, they’re not as energy-efficient as other options.

Halogen bulbs are a variation of incandescent. They give the closest approximation of natural daylight. Colors appear sharper under halogen light, and the bulbs can be dimmed. They’re a little more energy-efficient than incandescent bulbs, but are more expensive and burn at a higher temperature.

The typical fluorescent gives a flat, cold light, often bluish and harsh. It is a daylight-equivalent and cannot be put on a dimmer. There are many types of fluorescents on the market: warm ones, cool ones and special-colored ones. They typically produce more light and last longer than incandescents. Fluorescent bulbs work well to light large areas like basements or attics.

Compact fluorescent bulbs (CFLs) consume a quarter of the energy that incandescent bulbs do and last 10 times longer. Unlike the old fluorescent lights, CFLs are quiet, instant-on and have warmer, color-corrected tones. They can be used anywhere you would use a typical incandescent light bulb.

LED, which stands for “light-emitting diode,” is a lighting technology that is long-lasting and extremely energy-efficient — but isn’t ready to supplant all other bulbs yet. For one, these bulbs provide only directional light, not diffused light, making them ideal for under-counter task lighting, but not general room illumination. To overcome this, new models consist of large arrays of LEDs clustered together, but at prices from five to six times higher than CFLs, these bulbs are not for everybody.

Low Energy Light Bulbs

Monday, September 6th, 2010

It’s important that we all play a part in trying to reduce our own carbon emissions.  Every little bit we do, even if it’s as simple as changing a light bulb contributes towards slowing down global warming and protecting our future.

A compact fluorescent lamp (CFL), more commonly referred to as an energy saving light bulb (ESB) is a type of fluorescent lamp. The energy saving light bulb has been created to substitute for the standard incandescent lamp that many people still use. They fit into exactly the same standard light fixtures as incandescent light bulbs so you needn’t have to spend on new fittings to accommodate them.

Energy saving bulbs emits the same amount of visible light but use less power to do so, plus they have a longer rated life. While the purchase price of an energy saving bulb is typically a more than that of an equivalent incandescent lamp, the extended lifetime and lower energy use will more than compensate for the higher initial cost. For example, energy saving bulbs can save approximately twenty pounds in electricity costs over the course of a year.  The average rated life of a these bulbs is up to 15 times more than that of an incandescent bulb. Energy saving bulbs typically have a rated lifespan of between 6,000 and 15,000 hours, whereas incandescent lamps are usually expected to have a lifespan of 750 hours or 1,000 hours.

So you see, making a small change like swapping the light bulbs throughout your home can have a positive impact on your pocket and the environment.