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this is for DIY.
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50 watt LED
- Thread starter OPCOM
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bratpackdad
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It sounds cool, how does it look and where do I get it?![[thumbzup]](https://www.steelsoldiers.com/images/smilies/icon_smile_thumzup.gif "Thumbs Up [thumbzup]")
Stalwart
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Cool . . . NO! Red the notations under "*" and I quote:
"All high power emitter LED products mounted on aluminum metal-core printed circuit board, can be lighted directly, but we do not recommend lighting the high power products for more than 5 seconds without a appropriate heat dissipation equipment."
5 seconds! You better mount it to one heck of a heatsink or you're gonna be melting the solder.
"All high power emitter LED products mounted on aluminum metal-core printed circuit board, can be lighted directly, but we do not recommend lighting the high power products for more than 5 seconds without a appropriate heat dissipation equipment."
5 seconds! You better mount it to one heck of a heatsink or you're gonna be melting the solder.
Blood_of_Tyrants
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Heatsinks and fans of that size are cheap and it operates off 24 vdc. If you had a reflector, it would definitely be a great spotlight or headlight.
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Yes it has to be heatsinked but good. That is normal on this kind of thing. This one could be done on a copper spreader or heatsink with a fan if operated in warm environments, or just on an aluminum heatsink. Inquiries for cost could be made to the manufacturer, or ask them who is their importer to the USA. This is useful for interior lighting of a shelter and not really designed for headlamp use. At some point a liquid cooling system (copper pipe soldered to a copper heat spreader) could be adapted if it were to be used in a hot environment such as with a headlamp application. Consider also for a flashlight using a couple of 6V lantern batteries and a boost converter with PWM current limiting. They also make a 100W version. As can be seen this is an array of 8 dice in series, 5 such sections in parallel. It could be operated easily with a buck converter off the vehicle 28V system.
There are always options for lighing. LED is not really much more efficient yet than a fluorescent, keep in mind total energy conversion losses in the associated circuitry as well and all the pundits yammering about them tend to fill the minds with carpet remnants. Unfortunately, the way the light output is measured is different between LED and fluorescents, because LED emits in one direction, and fluorescents emit in many. This leads to cornfusion.
Of note is a new development in the traditional "light bulb" that results in nearly all of the radiation being moved up into the visible range. This has so far been ignored by the greenies and the media. Some information is here: Hybrid Lighting Technology: Making the old Incandescent Efficient for the 21st Century although I first read it in a technology journal a few weeks ago, so maybe there has been another advancement.
There are always options for lighing. LED is not really much more efficient yet than a fluorescent, keep in mind total energy conversion losses in the associated circuitry as well and all the pundits yammering about them tend to fill the minds with carpet remnants. Unfortunately, the way the light output is measured is different between LED and fluorescents, because LED emits in one direction, and fluorescents emit in many. This leads to cornfusion.
Of note is a new development in the traditional "light bulb" that results in nearly all of the radiation being moved up into the visible range. This has so far been ignored by the greenies and the media. Some information is here: Hybrid Lighting Technology: Making the old Incandescent Efficient for the 21st Century although I first read it in a technology journal a few weeks ago, so maybe there has been another advancement.