Thanks for enlightenment regarding heat management and efficiency life cycle..
On Thu, Feb 12, 2015 at 9:34 PM, subrahmanyam iyer > > > Good presentation, but for one little point. Thermal management: - LEDs > emit more lumens per watt input because they are more efficient and convert > fewer watts input into heat. However as they have a very small foot print > compared to other lighting systems, what little heat they generate is > concentrated in a small volume and hence higher rise in temperature. This > is what is abated by having an efficient cooling system called 'heat sink'. > They have no filaments in them that can get burnt after a period of time > and that is why they last for a long long time. In fact, the 50000 hrs > mentioned is only because they become a little less efficient over that > period of time. And the life time is determined when they reach about 85% > of their original light emitting capacity. If one accepts a little less > light (less efficiency) they can be used for a much longer time. > svs > S Chander -- You received this message because you are subscribed to the Google Groups "Thatha_Patty" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
