Quote:
Originally Posted by OceanicCorals-Eugene-
Im not so sure about that, give me an example of high power LEDs thats out there that doesn't utilize some form of active cooling, the ones found in the new Audi cars utilize passing air from inside the engine bay is a quick one that comes to mind. Its not so much cutting cost, im sure that has something to do with it, But if the heatsinks were made adequate enough for the LEDs to start the addition of fans only adds to the overall benefit of the fixture by keeping the LEDs at a much cooler temperature than without. You keep pointing out that fans have reliability issues. If you rip open one of the fixtures made for our hobby you'll quickly see that the fans they use inside to reduce cost....only costs $1-2. A Prop fan that is made by a good company usually run in the range of $10-12 and are 10x more quite than the cheap ones and push more air as well.
Also i would differ to say that computers are build as cheap as possible, at my previous job i was custom building PCs to fit the need of individual people and if you dont get into the watercooling side of things, the heatsink design + fan is really focused upon in the design of a system. The cooling of a system sometimes allows you to push that much more "juice" out of the system without getting lag. Theres only so much a heatsink can do, in other words you'll never see a top of the line computer system run without some form of active cooling on its components.
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Ok well these ones you sell come to mind
These 3W crees are enclosed in an aluminum housing which is supposed to keep them cool enough so they don't require fans. It's 3D inductive cooling as appose to just one sided but still a basic design. If fins were added to increase surface area and each unit was mounted to an additional heat sink I would bet the LEDs would run cooler than the fan cooled units currently available and those built by DIY'ers.
Also they make high powered LEDs for various residential applications including pretty much every light bulb standard available, none use fans.
Spotlights
http://www.udmdjstore.co.uk/category...ategoryID=2578
http://www.alibaba.com/product-gs/26...tdoor_LED.html
I could go on but I really do have better things to do these days.
As for computers my point was the CPUs run much hotter and it's commodity market and therefore not really compatible to the LEDs, that's all. I'm not here to debate anything on the subject of computer quality or price.