Can LED Lamps Replace All Conventional Lamps?

Light-emitting-diode (LED) is a form of solid-state-lighting (SSL), are evolving aggressively into a visible white-light source for general illumination.  LED lamps - one of the hot topic for everybody now a day due to its many benefits promised by many manufacturers and claimed by many marketing companies.  Benefits such as save 80% of electricity (compare with incandescent lamps), long average lamp life, no UV emission, no IR radiation, less heat and etc…all of the benefits showing LED lamps are green products to mankind in this early era of 21st century.

But are all the above-mentioned benefits true!

The answer is YES but not 100%...

Its light source, LED will emit certain wave length of light when power with electric current and is no longer depending on gases media, which contents in the glass tube(s) as per conventional light source.  When gas elements in the light source have been eliminated therefore no harmful gases and/or heavy metals (such as mercury) contents in the LED lamps, which are harmful to environment and human.  Without those non-environmental substances, no UV and IR will emit from the LED light source no mercury to Earth when lamps dump to Earth.

One of the significant benefit of LED is its long service life, normally 40,000hrs and above (LED only) but when in complete system such as a complete LED lamp and LED Lighting fixtures, electronic driver is involve therefore complete system service life will not easily achieve such long service life but practically average 25,000hrs and maybe economic version LED lamps will claim average 15,000 hrs lamp service life.  Average Lamp Life is referring to its brightness reduce to a certain percentage of its original full brightness after a certain period of light-on time.  The situation getting worst when non responsible manufacturers produce substandard LED lamps, which average lamp life less than conventional energy saving lamps (referring to quality and reliable energy saving lamp brands) and has caused more waste into our environment.  

Another common miss understand among end users of LED lamps is higher wattage means brightest…this is not 100% true…some manufacturers is trying to produce high brightness LED lamps by increase its power in term of wattage (means consume more electricity).  But in order to claim green LED lamps, we need efficient LED lamps, which provide high brightness but low power (wattage), less electricity use and save energy…

Good green LED Lamps should have 4 basic points:-

1.       Low wattage (W) high brightness,

2.       Brightness will not reduce significantly after used for 1000 to 2000 hrs.

3.        Long average lamp life (when its brightness reduced to 80% (some manufacturers claimed 70%) from initial brightness), most manufacturers claimed 25,000hrs.

4.        High Colour Rendering Index (CRI) shown as colour accuracy, it may not directly related to green as what we have mentioned above but LED lamps with low colour rendering index LED lamps will shown an object colour out of its original colour, this factor is particular important to commercial sector. 

At last but not least, many substandard poor quality LED lamps and fixtures in the market, which have damaged GREEN entitlement of LED lamps.  Therefore, always looks for reliable LED lighting products to contribute to green environment.