The article also mentioned that quality of light and life expectancy of the LED lightsource decreases dramatically if heat is not dissipated properly.
As consumers, the solution to minimise getting a lousy LED spotlight is to buy from a reliable supplier with good track records. For an exact looking product, the price range can be from as low as $6.00 to as high as $15.00. In my opinion, getting an MR16 LED spotlight at a price of $10 - $12 gives a much greater assurance going forward. This will maximise your returns on investment too.
[The article below is obtained from: http://ledsmagazine.com/magazine&id=17914
February 2013 Edition, page 7 of 80.}