Posts Tagged ‘leds’

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.

LED Lights

Monday, November 15th, 2010

For some reason when we think about energy saving light bulbs we don’t think about LEDs. I do not know why, but we do not think about energy efficient LEDs. And we should – they exist! And they are exactly the same as alternative LEDs, the same brightness, the same prices, but crucially they are far cheaper to run and far better for the environment.

Most modern homes have more LED Lights than traditional light bulbs and we have to start converting them to energy efficient LED Lights. This is a matter that I come across in my work on a weekly basis. I am an interior designer, most of my work is in properties that are up for sale; I dress houses in my furniture, curtains, lights, rugs and ornaments. I only use energy saving light bulbs and in the past year it has been the same with LED Lights. I wouldn’t want to do it any other way.

I am not an activist, I wouldn’t even call myself an environmentalist, I am just a human, living on planet earth and as such I feel that it is my duty to protect it if I can. We all recycle now, not to would be almost unthinkable. And the same should go for energy efficient light bulbs. It is such a small thing and if we all did it, it would make a huge difference – there is no reason not to.

I think that we are at a point in history where we have to make the change now, because when we look back on this period 50 years from now it will be embarrassing not to have. It is like smoking in pubs – if some one lit a cigarette now in a pub, they would be at best frowned upon, at worst arrested, and that change has been in place for less than 5 years, we should be frowning upon lighting manufacturers that do not come with energy saving light bulbs and surely we are not far away from some sort of legislation that makes this compulsory.

In the meantime, we have to do our best in our own homes, we have to make the change and we, as consumers, have to demand the change from manufacturers.

Conclusion

There is no time like the present. I think we need a sense of urgency when it comes to changing to energy saving light bulbs, particularly with LED lights.

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.

LED for You and Me

Tuesday, August 31st, 2010

What has been the most important global issue of the last 10 years? Poverty? No. Financial Crisis? Not even close. The Environment? Yes, yes and yes again. Elections have been won and lost because of this issue, BP are currently suffering devastating financial and Public Relations disasters because of their environmental legacy, deforestation is having huge consequences on environments, global warming is in the news every week. We are beginning to realise the mess that the world is in.

This sort of ‘Global Issue’ seems so far removed from us, so far removed from our homes and our communities, but in fact the reverse is true and people are beginning to realise it. Individually we are beginning to take note; most of us regularly recycle, we don’t go to the dump any more – we go to recycling depots, we all complain about over-zealous packaging in our consumables, environmentally friendly products have been outselling, cheaper, less sustainable products.

One of the smallest, and yet paradoxically most effective ways we can help the environment is by changing our lightbulbs to energy saving lightbulbs. More and more people have been doing this as sales show and they are reaping the rewards – saving as much as 80% from their energy bill. Yet there is more that can be done. More and more modern, bespoke lights (especially in the kitchen for some reason) feature LED Lights; they look sleek and small, they have a sharp brightness and work exceptionally well with dimmers; however, most of us don’t yet look for energy saving LEDs.

Well I am here to let you know that LED lights can be every bit as energy saving as conventional energy saving light bulbs. And you have more of them than you think – take a look around your kitchen.

Another area that we use LED lighting is in the garden, security lights, pond lighting and decking lights are becoming more and more popular in LED lighting – let’s make the energy saving version the only bulb to buy!