Forums > Technical Discussion > Luxeon Star LED, 660,000 mcd
Login/Join to ParticipateSILVER Member
newbie
37 posts
Location: Denver, CO, USA
newbie
37 posts
Location: Denver, CO, USA
Posted:
Has anyone experimented with these? Turned them into poi? Ever seen one in person? These are super ultra bright LED's.
https://www.bit-tech.net/review/82/
Here's a review with pictures of a red one.
These produce 660,000 mcd, where as a regular high intensity LED may produce 12,000 (such as is near the range of beaming poi I believe). The price seems to be about $15 each, but I can't find a place to purchase them at. Anyone?
-Elfire
Has anyone experimented with these? Turned them into poi? Ever seen one in person? These are super ultra bright LED's.
https://www.bit-tech.net/review/82/
Here's a review with pictures of a red one.
These produce 660,000 mcd, where as a regular high intensity LED may produce 12,000 (such as is near the range of beaming poi I believe). The price seems to be about $15 each, but I can't find a place to purchase them at. Anyone?
-Elfire
member
92 posts
Location: roanoke, VA
92 posts
Location: roanoke, VA
Posted:
the article had a link for a supplier!
read it again
here it is:
https://www.markhannahsurplus.com/
also:
https://shop.store.yahoo.com/flashlight/barluxstarle.html
the article had a link for a supplier!
read it again
here it is:
https://www.markhannahsurplus.com/
also:
https://shop.store.yahoo.com/flashlight/barluxstarle.html
Peace,Travis IM: frodus17
back from the dead...sort of
884 posts
Location: 43°41'N 79°38'W
884 posts
Location: 43°41'N 79°38'W
Posted:
Jebus, that's bright. I want a set of those.
Jebus, that's bright. I want a set of those.
GOLD Member
still can't believe it's not butter
6,978 posts
Location: Melbourne, Australia
still can't believe it's not butter
6,978 posts
Location: Melbourne, Australia
Posted:
would any boffin-types know what kind of circuit this kinda led would need? what battery choices are avaiable? What's the capital of Victoria?
quote:heatsink?(!)
Color available is white. All LED's include optics and stock heatsink. Note: since these are intended for experimenter use and are easy to blow up, they are sold AS IS and will not be replaced if you push too much current through them, drop them, etc.
would any boffin-types know what kind of circuit this kinda led would need? what battery choices are avaiable? What's the capital of Victoria?
Laugh Often, Smile Much, Post lolcats Always
member
92 posts
Location: roanoke, VA
92 posts
Location: roanoke, VA
Posted:
If you went to the site you'd know
Typical Candela on axis 660 Cd
Dominant wavelength 627 nm
Typical luminous flux 44 lumens
Junction material Aluminum Indium Gallium Phosphide
Typical forward voltage (Vf) 2.95 V
Forward test current (If) 350 mA
Max. forward current 385 mA
Cost US $15
and in towards the end of it, the review said:
"I used 5V from an AT power supply, and five 33 Ohm, 1/4 Watt resistors in parallel. (Vs - Vf) / Id gives 5.85 ohms, and (Vs - Vf) * Id gives 718 mW, so I chose that parallel combination to make a 6.6 ohm resistor rated 1.25W to be conservative. My trusty meter showed a current of 275 mA, which is more than 20% below the rated drive current. "
go back and look. The heat sink is because this fucker gets HOT. it needs to stay cool. The normal LED's are like 10ma or so. this is 38 times that, and a LOT brighter.
all you need is a voltage source, some resistors and that LED, and some soldering skill and some electronic knowledge.
If you went to the site you'd know
Typical Candela on axis 660 Cd
Dominant wavelength 627 nm
Typical luminous flux 44 lumens
Junction material Aluminum Indium Gallium Phosphide
Typical forward voltage (Vf) 2.95 V
Forward test current (If) 350 mA
Max. forward current 385 mA
Cost US $15
and in towards the end of it, the review said:
"I used 5V from an AT power supply, and five 33 Ohm, 1/4 Watt resistors in parallel. (Vs - Vf) / Id gives 5.85 ohms, and (Vs - Vf) * Id gives 718 mW, so I chose that parallel combination to make a 6.6 ohm resistor rated 1.25W to be conservative. My trusty meter showed a current of 275 mA, which is more than 20% below the rated drive current. "
go back and look. The heat sink is because this fucker gets HOT. it needs to stay cool. The normal LED's are like 10ma or so. this is 38 times that, and a LOT brighter.
all you need is a voltage source, some resistors and that LED, and some soldering skill and some electronic knowledge.
Peace,Travis IM: frodus17
GOLD Member
still can't believe it's not butter
6,978 posts
Location: Melbourne, Australia
still can't believe it's not butter
6,978 posts
Location: Melbourne, Australia
Posted:
so.... what battery selection and circuit design would best power it for a portable appilcation (say, in something twirlable™) thank you though
I'm forever in debt to your priceless advice!
so.... what battery selection and circuit design would best power it for a portable appilcation (say, in something twirlable™) thank you though
I'm forever in debt to your priceless advice!
Laugh Often, Smile Much, Post lolcats Always
member
92 posts
Location: roanoke, VA
92 posts
Location: roanoke, VA
Posted:
i wouldn't know if it would be ok to twirl
i don't know if it would damage the LED if it had sudden impact, even if it was padded.
you could use a 9v battery and some resistors and run it 1/2 power
i wouldn't know if it would be ok to twirl
i don't know if it would damage the LED if it had sudden impact, even if it was padded.
you could use a 9v battery and some resistors and run it 1/2 power
Peace,Travis IM: frodus17
back from the dead...sort of
884 posts
Location: 43°41'N 79°38'W
884 posts
Location: 43°41'N 79°38'W
Posted:
must...find...way...to...make...twirlable....
Think I'll grab some anyways and deck out my room with some chilled lighting. Boo yeah grandma.
must...find...way...to...make...twirlable....
Think I'll grab some anyways and deck out my room with some chilled lighting. Boo yeah grandma.
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