LED Technology and the Dinotte 500L
04-23-07, 06:00 AM
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Originally Posted by Big Tommy C
That's something I love about LEDs: They are more efficient when you run them at lower power. They are very dimmable, can be made to flash, run basically forever, and don't cost $80 to replace because a bulb burns out/shatters.
I agree though, at some point LED will replace HID. I think we could be there now but the manufacturers are milking the early adopters market for extra profits, same as they did with HID. Once someone does for the high power LED market what TrailTech did for HIDs, we'll have LED blowtorches for $150 or less.
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04-23-07, 06:12 AM
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Originally Posted by Big Tommy C
Well, I think it's really something like 190 to 230 lumen, depending on how things go in the "bin lottery".
Plus when you run them at lower power it approaches 100 lumen/watt (at 1 watt).
That's something I love about LEDs: They are more efficient when you run them at lower power. They are very dimmable, can be made to flash, run basically forever, and don't cost $80 to replace because a bulb burns out/shatters.
As soon as the more mainstream light companies pick up on the Cree XR-Es and the Seoul P4s, I don't think there will be any reason to go HID.
Plus when you run them at lower power it approaches 100 lumen/watt (at 1 watt).
That's something I love about LEDs: They are more efficient when you run them at lower power. They are very dimmable, can be made to flash, run basically forever, and don't cost $80 to replace because a bulb burns out/shatters.
As soon as the more mainstream light companies pick up on the Cree XR-Es and the Seoul P4s, I don't think there will be any reason to go HID.
Good name for the variation too..."bin lottery"..I like it.
04-23-07, 10:23 AM
#28
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I did see the new Wilma. Too much money and not enough battery for a 24 hour race without spending time at a charging station. I will also like having 2 batteries for for commuting. So, the 2 batteries with the Dinotte package was a tipper for me. And, honestly,my early view is the Dinotte is plenty enough light.
04-23-07, 10:50 AM
#29
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Originally Posted by Zero_Enigma
You're the dood with the smashing behind on the bike right? I think you're the guy with the bright wide taillight. Anyways, CREE LED's and Seoul LED's are already in fighting competition with HID's right now in power. Current CREE XRE LEDs are 80lm @ 350mAh (lowest power setting and as bright as the claimed 80lm for the Ultra 3W Dinotte on high) and 176lm @ 1000mAh. These LED's are aquireable at as low as $7 USD/LED right now. As always the battery will always eat you 50% of the cost but still you can have a kick butt light for ~$100 USD that puts out more light then the 500L. 176lm x 4 LEDs = 704lm (3LED = 528lm). The Seoul LED's are slightly brighter then the CREE XRE's but Seoul has forecasted plans by Q4/07 to have a 216lm LED @ 1000mAh (if I remember the power specs) by the end of the year. So that would put out about ~95-100lm @ 350mAh roughly on the lowest power setting. Get ready to wash out that Beamers (BMW) lights at the next traffic lights. 
Yah I agree $500 is too rich for my blood. One of my old highschool mates is into LED's and just bought some K2's and a CREE for his motorbike but I plan on working with him for a bike version. He's a programmer so the LED thing is just on the side but I really hope to have the lights in prototype testing in a couple months.
This is the best looking DIY. Very nice looking and low profile as well for the helmet and bar mount. https://myfwyc.org/bikeled/DIY_LED_Bi...ing_Guide.html
Yah I agree $500 is too rich for my blood. One of my old highschool mates is into LED's and just bought some K2's and a CREE for his motorbike but I plan on working with him for a bike version. He's a programmer so the LED thing is just on the side but I really hope to have the lights in prototype testing in a couple months.
This is the best looking DIY. Very nice looking and low profile as well for the helmet and bar mount. https://myfwyc.org/bikeled/DIY_LED_Bi...ing_Guide.html
04-23-07, 11:19 AM
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Originally Posted by ItsJustMe
How much does it cost to replace an LED when it finally dies? High power LEDs do die. OK, they fade away....
Are you going to ride long enough for 25,000 hours when the LED burns out? By the time you do, there is already a much better technology ready for you.
04-23-07, 11:25 AM
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Personally I like this, but it's too much machining for me to do.
Except it is running a somewhat outdated Luxeon III LEDs, if you can make one with Seoul P4s, that would be an awesome light.
Build link.
This is pretty awesome as well.
Build link.
Wanna find more? There's a link at Candlepowerforum that takes you to all the bike related thread.
https://www.candlepowerforums.com/vb/...d.php?t=146894
Except it is running a somewhat outdated Luxeon III LEDs, if you can make one with Seoul P4s, that would be an awesome light.
Build link.
This is pretty awesome as well.
Build link.
Wanna find more? There's a link at Candlepowerforum that takes you to all the bike related thread.
https://www.candlepowerforums.com/vb/...d.php?t=146894
Last edited by mrbubbles; 04-23-07 at 12:22 PM.
04-23-07, 11:35 AM
#32
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Originally Posted by mrbubbles
Wanna find more? There's a link at Candlepowerforum that takes you to all the bike related thread.
https://www.candlepowerforums.com/vb/...d.php?t=146894
https://www.candlepowerforums.com/vb/...d.php?t=146894
04-23-07, 11:54 AM
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Now wait a second, Luxeon now has a new emitter, called the Luxeon Rebel!
145 lumens at 700mA. And it's TINY!
145 lumens at 700mA. And it's TINY!
04-23-07, 12:23 PM
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Originally Posted by HardyWeinberg
Wow. So, can I buy parts and plug them in or do I need to fabricate everything and handwire a little motherboard to go into each enclosure?
04-23-07, 12:28 PM
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Originally Posted by 2manybikes
It might be the "light selection guide". It might be another thread "Lupine Wilma" or something like that.
It was almost the same as my 900 lumen Lupine HID. The beam shape might even be better for riding.
I'll try and find it.
Edit post: I found this in the Lupine Forum, it's exactly what you want.
https://www.lupine-lights.com/phpBB/viewtopic.php?t=1155
It was almost the same as my 900 lumen Lupine HID. The beam shape might even be better for riding.
I'll try and find it.
Edit post: I found this in the Lupine Forum, it's exactly what you want.
https://www.lupine-lights.com/phpBB/viewtopic.php?t=1155
I'll still wait until the ARC dies and hope for the price of the Lupine Wilma to come down.
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04-23-07, 12:29 PM
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Originally Posted by jeff-o
Now wait a second, Luxeon now has a new emitter, called the Luxeon Rebel!
145 lumens at 700mA. And it's TINY!
145 lumens at 700mA. And it's TINY!
That's pita to work with. What's the lumen rating at 1000mA? At this point, Seoul P4s still wins as the LED to use. If the Rebels are in the same price range as Seoul P4s, that might be something to think about, but P4 stars are still the way to go as they are really easy to work with.
Available at https://www.dealextreme.com/details.dx/sku.1445
04-23-07, 02:29 PM
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From the technical datasheet: https://www.luxeon.com/pdfs/DS56.pdf
It says that you get 145 lumens at 700mA. These are pretty small, you can fit a ton of these on a round pcb.
https://www.luxeonstar.com/item.php?i...LXML-PWC1-0080
VERY small
Looking at the prices at that particular website, if you buy 10+ they are 4.30 each. If you buy 10 that would cost 43.00.
At 145 lumens each x 10 X 700mA = 1450 lumens at 7 watts. All in the size of about 1 Seoul P4.
Too bad they only have the 80 and 95 lumen @ 700mA in stock.
It says that you get 145 lumens at 700mA. These are pretty small, you can fit a ton of these on a round pcb.
https://www.luxeonstar.com/item.php?i...LXML-PWC1-0080
VERY small
Looking at the prices at that particular website, if you buy 10+ they are 4.30 each. If you buy 10 that would cost 43.00.
At 145 lumens each x 10 X 700mA = 1450 lumens at 7 watts. All in the size of about 1 Seoul P4.
Too bad they only have the 80 and 95 lumen @ 700mA in stock.
Last edited by jdraughn; 04-23-07 at 02:37 PM.
04-23-07, 02:42 PM
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FWIW - I read the review posted in here and thought maybe I should look into the Princeton Tec Switchback 2. Its MSRP is $269(?). I found it at Universal Cycles for $223. They are also having a 10% off coupon for orders over $100. I got the light plus USPS Priority mail shipping for $213.20. Coupon is over May, 1.
https://www.universalcycles.com/shop...&category=3070
https://www.universalcycles.com/shop...&category=3070
04-23-07, 03:02 PM
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Wikipedia is a source of considerable data on LED's. I haven't checked recently but for some reason 67 lumens per watt sticks in my brain. Of course this is only the beginning. LED's are here to stay and 'will' become the standard... one day. Unfortunately that day is not today nor tomorrow even. Halogen still has legs and will do for several more years. HID is no more affordable or efficient than LED so if one really wants to be on the cutting edge one could do worse than be an early adopter of LED tech.
H
H
04-23-07, 04:13 PM
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For rookies like me with no electronics background the LED on a star is the easiest (visually that is) to work with, with the DIY link I put up. It's just a matter of getting the parts right now for the best price.
The non-star LED's seem to be good for those that know there way around electronics to work in tighter spaces and such to cram more into the same space. That 145lm Rebel @ 700mA is nice for the size but at 350mA would be 72.5lm. I'll have to check the spec sheets again but I do believe the CREE XRE is 80lm @ 350mA.
The non-star LED's seem to be good for those that know there way around electronics to work in tighter spaces and such to cram more into the same space. That 145lm Rebel @ 700mA is nice for the size but at 350mA would be 72.5lm. I'll have to check the spec sheets again but I do believe the CREE XRE is 80lm @ 350mA.
04-24-07, 12:30 PM
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Originally Posted by mrbubbles
Personally I like this, but it's too much machining for me to do.
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