Installing LED COB on passive heatsink
Автор: Flintsmooth
Загружено: 2015-01-22
Просмотров: 48893
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Here I install a Bridgelux Vero 18 LED onto a heatsink. The LED is about 45 watts, and the large heatsink can easily dissipate this heat, raising only 30 degrees in stagnant air, and almost no increase in a moving air environment. I now have it in a room with a fan circulating the air, and I can't feel any heat at all, it's barely warm.
The LED cost under $20 at Digikey, and the sink was about $15, plus shipping, from HeatsinkUSA. The power supply will cost me around $20, plus various surplus parts. All together fairly expensive, but since it will last me 15 or 20 years and save a fortune in electricity, I don't mind! (It will probably pay for itself since it's 5000 lumens will replace about 350 watts of incandescent light, and can easily light any room! Plus, it can be dimmed down to far less power and still equal a 100 watt bulb.
I'm sure I can use this size sink for a larger LED, so I will next try a Vero 29 which can run at 120 watts. That will be another video.
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