The Benefits of LED Lighting
LED bulbs in various different forms have been in use since their invention the middle of the 20th century. For example the infra-red beam transmitted from a remote control device is sourced from a tiny LED, in the context of relaxing after the proverbial “hard day at work”, the benefit is obvious. With an LED bulb, you can tell the time and obtain solutions to mathematical problems due to the display on digital clocks and calculators. It has always been acknowledged that LED bulbs are more efficient than their Halogen and incandescent counterparts.
As measured in lumens, LED bulbs transfer less electrical energy to produce a given quantity of light and they have much longer life span. For example, the most efficient LED bulbs can emit the equivalent of a 60 watt bulb using less than 10 watts of electricity and can last for almost 50,000 hours. Perhaps crucially, the single biggest hurdle to the acceptance of LED lighting has been overcome.
The efficiency and longevity credentials of LED bulbs are beyond reproach, but a healthy percentage of the light was emitted back into the bulb. This internal reflection meant that until very recently watt for watt incandescent and halogen bulbs were brighter. So, why else are LED bulbs becoming more accepted?
Intertwined with the efficiency savings is the reduced carbon footprint. Provided efficiency does not translate into consuming more electricity, switching light fixtures to 60W LED bulbs can save hundreds of kilogrammes of CO2 per year from residing in atmosphere per lamp switched. Furthermore, as indicated above LED bulbs are much more stable than the now illegal to purchase (at least in the UK) incandescent light bulb. A typical incandescent bulb will last approximately 30,000 hours whilst an incandescent equivalent will last less than 1000 hours.
At this juncture things get a little more complex and a degree of long-term thinking and foresight is required. In short, an LED bulb can still be going strong for 20 years from the time it was first used to complete the electrical circuit it has been connected to. This presents a point that must be made clear and that is that LED bulbs are expensive. The price for a single LED bulb is up to £25.00 in the UK and whilst you can explain the efficiency benefits and life span of the bulb, asking people for money up front is going to be tough sell in any language.
For sure, the prospect of replacing a light bulb every 15 years and a reduced electricity bill into the bargain is going to be attractive. However, what happens if there are still 15 incandescent bulbs in storage, and 20 to 25 light fittings in the house? You do the maths, it (replacement) is by and large just not going to happen, until bulbs start to blow.
For business, the financial constraints on procuring and installing LED bulbs are perhaps less severe and so the advantages of LED bulbs are clear and apparent. For the domestic world, it would seem that some form of financial inducement ought to be available. Meaning that the full advantages of LED technology can be employed for the benefit of all of us and the planet we live upon.