Thursday, 8 January 2015

LED Lights and Heatsinks

Have you ever been curious why LED lights aren’t as hot as other types of lights? Given the popularity of LED lights these days, especially as many of us put up Christmas lights prior to the upcoming holiday, it is quite fascinating to consider the way in which LED lights deal with the issue of heat dissipation and management as compared to other types of lights.

The variation in heat produced by different types of lights is quite drastic. As measured by one online retailer, a halogen bulb operated at 327 degrees. A CFL was cooler at only 167 degrees, but the LED was coolest by far at only 107 degrees. Heatsinks keep LEDs cooler than the competition, allowing for my toddler to handle the lights on our Christmas tree without me worrying that he’s going to burn his hands (and taking away the worry that the tree may catch on fire!).

Heatsinks in general work to dissipate heat for any kind of electronic and not just lights. LEDs, however, are a perfect example to provide which most of us are familiar with, as everyone knows how hot an incandescent light bulb can get. Heatsinks can be designed in a nearly infinite array with variations provided to meet the different needs of the application. LED heatsinks, like all heatsinks, can be made from different materials with different structures meant to maximize surface area to release heat more efficiently. Many heatsinks utilize pins, fins and other components for the general purpose of thermal management.

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