2012-Aug-14 - Zenigata LED light
So you could, right now, replace all your 60w light bulbs with Zenigata LED light bulbs rated at 6.7 watts and consume 1/10th (or 90% less) electricity. And remember Haitz's Law? Because of performance improvements, eighteen months from now you should be able to obtain the same 60w worth of lighting from just 3 watts.
LED light, in common with CFLs,PAR 38 LED dab5d63ck has tended to be a somewhat cool blue colour, whereas we are more accustomed to a warmer yellow white colour. This is something that is now commonly addressed with the use of colored phosphors (these do reduce luminosity but this is in turn compensated for by the ever increasing lumens per watt yields for LEDs).
The third factor that might be considered to weigh against low energy LED lighting is that the light emitted by an LED is intrinsically directional and doesn't scatter in all directions the way that incandescent and fluorescent lights do. This is actually quite acceptable in a spotlight, flood light or bright reading lamp, but it's not especially effective for emulating general ambient lighting such as a table lamp would provide. Though again, there are LED powered general lighting light bulbs becoming more commonly available that do a reasonable job here.
Two obvious plus points for low energy LED lighting are ease of retrofit and ecological credentials (other than simply saving energy).
LED lights are widely available for all common base fittings such as mains powered GU10 and 12v MR16 spotlights and the low energy standard base GU24 as well as regular bayonet mounts and Edison screw fittings. LED lights also don't suffer from the many inherent problems associated with CFLs such as: noticeably poor start-up times;A19 Light Bulb reduced lifespan caused by frequent switching on and off; and bulky unattractive bulbs.
But perhaps one of the most widely known advantages of low energy LED lighting over energy saving CFL light bulbs is that they don't contain toxic mercury vapour or other unpleasant materials, and thus do not pose a serious health risk or require tiresome and expensive disposal procedures to protect the environment.
To sum up, the main perceived disadvantages of domestic energy saving LED lighting are cost and application (luminosity and color). Yet as we have seen, the cost of a light bulb is actually a red herring - the true cost of electrical lighting is the price of electricity and on this score ultra low energy LED lighting puts everything else, including energy saving CFLs, completely in the shade (pun intended)http://officefurniture001.com/cabinet.html.
As regards luminosity and light quality, LED lights on balance deliver a cleaner, sharper light than CFL light bulbs and offer far more flexibility in terms of color choice and brightness.
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