Quote:
Originally Posted by Ron99
Well, it all depends on how well ventilated the housing is on those units. 5mm LEDs will suffer from heat too. it's just that thermal management of high power LEDs is more critical because they put out alot more heat. But a tight, enclosed fixture with 180 5mm LEDs in it could potentially build up heat and reduce the life of the emitters. And you can't really use heatsinks and fans to cool the plastic type LEDs.
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doesn't matter at all, I had potted 5mm leds that have been running for 4 years 24/7 the heat production from a 5mm at 3.7 volts (rated input) is nill. the ones I have arew potted in the middle of 1.5 X 1" clear acrylic potting material. I actuly threw them out when I moved as I was doing an exparament to see how long submersable leds would last in a waterproof enclosure.
Steve
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