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Date: 28 Jan 2007 10:59:05
From: Gooserider
Subject: Busch & Mueller "Big Bang"---the ultimate bike light?
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http://www.peterwhitecycles.com/bigbang.asp Wow. Looks very impressive. Ridiculously pricy, though. A grand for a bike light? Still, impressive technology.
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Date: 08 Feb 2007 14:40:39
From: Will
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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On Feb 6, 6:15 pm, "Chalo" <chalo.col...@gmail.com > wrote: > I composed a long and comprehensive reply to your question, but Google > Groups seems to have blackholed it. So here are some useful links for > your information; Thanks. Lots of info in the links. Perhaps your blackholed reply will show up eventually. I've got a NiteRider HID that I like quite a bit. The bulb replacement is annoys the wallet though. I recently installed a couple of B&M bottles and Dymotecs on my kid's bikes and was really impressed with the setup. Now I want to build something...
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Date: 08 Feb 2007 13:37:39
From: Prisoner at War
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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On Jan 31, 3:40 pm, Pat Lamb <pdl678nos...@comcast.net > wrote: > On Sun, 28 Jan 2007 10:59:05 -0500, Gooserider wrote: > >http://www.peterwhitecycles.com/bigbang.asp > > > Wow. Looks very impressive. Ridiculously pricy, though. A grand for a bike > > light? Still, impressive technology. > > Thinking about this on the way home last night; OK, your normal HID light > seems to run around $500. Is the precision optics for this really worth > another $500? > > Pat Yeah, I was wondering about that...the optics make it so that, what, oncoming traffic isn't blinded? Better peripheral vision?? For $500 more than an Arc Ultra HID, it only lasts 4.5 hrs., too! Still, I applaud all development in this area...I'm surprised it's taken this long!
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Date: 09 Feb 2007 10:04:11
From: Pat Lamb
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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Prisoner at War wrote: > On Jan 31, 3:40 pm, Pat Lamb <pdl678nos...@comcast.net> wrote: >> On Sun, 28 Jan 2007 10:59:05 -0500, Gooserider wrote: >>> http://www.peterwhitecycles.com/bigbang.asp >>> Wow. Looks very impressive. Ridiculously pricy, though. A grand for a bike >>> light? Still, impressive technology. >> Thinking about this on the way home last night; OK, your normal HID light >> seems to run around $500. Is the precision optics for this really worth >> another $500? > > Yeah, I was wondering about that...the optics make it so that, what, > oncoming traffic isn't blinded? Better peripheral vision?? That's what I was thinking. For $500, if I needed that bright a light to begin with, I'd tilt the "cheap" one down. > For $500 more than an Arc Ultra HID, it only lasts 4.5 hrs., too! > Still, I applaud all development in this area...I'm surprised it's > taken this long! I guess you only need two batteries to get you through an audax night... Pat
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Date: 07 Feb 2007 01:15:39
From: Chalo
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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Bill Baka wrote: > > Did you design the electronics and lay out a PCB? Nope. For controlled-current drive electronics, it's easier and cheaper-- and much more compact-- to use something like this: http://ledsupply.com/02009-sho.php (for 3V source) Or this: http://ledsupply.com/02012-d-350.php (for 12V source) > You sound like a budding engineer. I'm a machinist and prototypist by trade. I just left a private space program that I helped to start up in 2001. > Lithium is too expensive I've bought several 2400mAH lithium cell phone batteries for $5 to $6 including shipping. As long as they keep letting cell phones go out of production, there will be a steady source of cheap lithiums and chargers in useful sizes for LED bike lights. Chalo
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Date: 07 Feb 2007 15:45:05
From: Bill Baka
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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Chalo wrote: > Bill Baka wrote: >> Did you design the electronics and lay out a PCB? > > Nope. For controlled-current drive electronics, it's easier and > cheaper-- and much more compact-- to use something like this: > http://ledsupply.com/02009-sho.php (for 3V source) > > Or this: > http://ledsupply.com/02012-d-350.php (for 12V source) Cool site. I might not have even known about it but it looks like somebody took the work out of my do it yourself project. Now I have one more bookk. > >> You sound like a budding engineer. > > I'm a machinist and prototypist by trade. I just left a private space > program that I helped to start up in 2001. Many "good" machinists are good at other stuff too. A good friend of mine is a maintenance mechanic and is into electronics on the side. > >> Lithium is too expensive > > I've bought several 2400mAH lithium cell phone batteries for $5 to $6 > including shipping. As long as they keep letting cell phones go out > of production, there will be a steady source of cheap lithiums and > chargers in useful sizes for LED bike lights. That may be due to the cell phone phenomena, but can work out for a small bicycle, too. My Cateye may get Lithiumed. Thanks, Chalo, that is good input. Bill Baka > > Chalo >
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Date: 06 Feb 2007 16:15:49
From: Chalo
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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Will wrote: > > Chalo wrote: > > > > I've made my own LED lights using 3 x > > NiMH cells in the same way-- no drive electronics, no driver losses, > > no additional packaging or extraneous points of failure. (And no low > > beam, of course.) > > Care to provide a link to tell us how? I composed a long and comprehensive reply to your question, but Google Groups seems to have blackholed it. So here are some useful links for your information; http://www.mouldy.org/node/7 http://www.littlefishbicycles.com/bikelight/ http://ledsupply.com/k2star.php http://www.quickar.com/lux.php?session=NdN2GjRQ http://www.luxeonstar.com/sub_category.php?id=330&link_str=330 http://www.fraensrl.com/images/FHS_K2_datasheet.pdf http://www.candlepowerforums.com/vb/showthread.php?t=90339 http://candlepowerforums.com/vb/showthread.php?t=47389 http://forums.mtbr.com/showthread.php?t=141833 http://cgi.ebay.com/Extended-Battery-2400-mAh-w-Door-For-MOTOROLA-v60-v60i_W0QQitemZ320077745143QQihZ011QQ http://cgi.ebay.com/For-Motorola-V60i-V60c-V60-60I-60C-60t-Travel-Charger_W0QQitemZ130075006358QQihZ003QQ http://cgi.ebay.com/Rapid-DESKTOP-CHARGER-for-Motorola-v60-v60p-v60s-v60x_W0QQitemZ220079662062QQihZ012QQ I'll be happy to discuss details with you if you like. Chalo
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Date: 06 Feb 2007 15:36:52
From: Chalo
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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Frank wrote: > > Chalo wrote: > > > > I've made my own LED lights using 3 x > > NiMH cells in the same way-- no drive electronics, no driver losses, > > no additional packaging or extraneous points of failure. (And no low > > beam, of course.) > > Chalo, what LED did you use? I used Luxeon I emitters and Fraen collimating optics. I coupled them well to efficient heatsinks and drove them at currents upwards of 500mA. This was when the Luxeon III was new and pricey, so I took the cheap option. Next time, I'll use Luxeon K2 mounted on Star PCBs. Those are more power efficient, brighter, cheaper, and easier to mount than the ones I used for my lights. See my reply to Will for more information. Chalo
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Date: 06 Feb 2007 23:56:12
From: Bill Baka
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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Chalo wrote: > Frank wrote: >> Chalo wrote: >>> I've made my own LED lights using 3 x >>> NiMH cells in the same way-- no drive electronics, no driver losses, >>> no additional packaging or extraneous points of failure. (And no low >>> beam, of course.) >> Chalo, what LED did you use? > > I used Luxeon I emitters and Fraen collimating optics. I coupled them > well to efficient heatsinks and drove them at currents upwards of > 500mA. This was when the Luxeon III was new and pricey, so I took the > cheap option. Next time, I'll use Luxeon K2 mounted on Star PCBs. > Those are more power efficient, brighter, cheaper, and easier to mount > than the ones I used for my lights. > > See my reply to Will for more information. > > Chalo > Did you design the electronics and lay out a PCB? You sound like a budding engineer. I have been considering designing a super efficient switching power supply to maintain constant output from either Alkalines at 1.5 volts or NiMh at 1.2 volts each. Lithium is too expensive and NiCads are pretty much history. Bill Baka
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Date: 06 Feb 2007 14:56:32
From:
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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On Feb 5, 5:56 pm, "Chalo" <chalo.col...@gmail.com > wrote: > > But then, IMHO I think the DiNotte lights, while nice, seem to have a > > pretty high k-up. > > Funny to me that the Li-ion lights command such a premium, when the > cell voltage of Li-ion and the forward voltage of high-flux white LEDs > are a nearly perfect match. I've made my own LED lights using 3 x > NiMH cells in the same way-- no drive electronics, no driver losses, > no additional packaging or extraneous points of failure. (And no low > beam, of course.) Chalo, what LED did you use? - Frank Krygowski
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Date: 05 Feb 2007 15:44:59
From: Will
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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On Feb 5, 4:56 pm, "Chalo" <chalo.col...@gmail.com > wrote: > > But then, IMHO I think the DiNotte lights, while nice, seem to have a > > pretty high k-up. > > Funny to me that the Li-ion lights command such a premium, when the > cell voltage of Li-ion and the forward voltage of high-flux white LEDs > are a nearly perfect match. I've made my own LED lights using 3 x > NiMH cells in the same way-- no drive electronics, no driver losses, > no additional packaging or extraneous points of failure. (And no low > beam, of course.) > > Chalo Care to provide a link to tell us how?
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Date: 05 Feb 2007 14:56:49
From: Chalo
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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> But then, IMHO I think the DiNotte lights, while nice, seem to have a > pretty high k-up. Funny to me that the Li-ion lights command such a premium, when the cell voltage of Li-ion and the forward voltage of high-flux white LEDs are a nearly perfect match. I've made my own LED lights using 3 x NiMH cells in the same way-- no drive electronics, no driver losses, no additional packaging or extraneous points of failure. (And no low beam, of course.) Chalo
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Date: 06 Feb 2007 00:42:19
From: Bill Baka
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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Chalo wrote: >> But then, IMHO I think the DiNotte lights, while nice, seem to have a >> pretty high k-up. > > Funny to me that the Li-ion lights command such a premium, when the > cell voltage of Li-ion and the forward voltage of high-flux white LEDs > are a nearly perfect match. I've made my own LED lights using 3 x > NiMH cells in the same way-- no drive electronics, no driver losses, > no additional packaging or extraneous points of failure. (And no low > beam, of course.) > > Chalo > > > The Lithium cells have more power per pound, or size, and are the latest hot item. As long as people will pay for them the price will be up there. The "ket" target is actually cell phones (talk time) and laptops. A friend needed a replacement for his laptop and was happy that he got such a bargain on Ebay, only $115.00 Only when the demand goes down, competition emerge, or a better chemistry comes out, will the price start going down. At least competition and a free ket have these benefits. NiMh is for us cheapskates. Bill Baka
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Date: 01 Feb 2007 18:12:45
From: Tom Keats
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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In article <qipwh.20977$Mx4.6801@trndny07 >, Stephen Harding <smharding16@msn.com > writes: > Chalo wrote: > >> As the performance of LEDs rises to the point that 2-4 watts really >> does produce enough light for a satisfactory headlamp, there may be a >> resurgence in the use of sidewall generators and dynohubs. Active >> power management and ultracapacitors for standlight capability would >> make such generators more useful than ever before. > > I'm currently using a B&M generator with a B&M 6V/3W > headlight and am very pleased with the lighting quality > on road or bike path. I've also run the light at 2.4W > with little difference in lighting capacity. > > Since they have a model with a built in LED for standlight > purposes, it seems we're already where you think we might > go! Nevertheless, I for one do like the active power management idea. I think I've posted this regulator idea here before, but what the heck, I'll do it again: http://www.nscl.msu.edu/~daniel/regulator.html The generator charges a rechargable battery, which powers the lights. With such a setup, the regular lights /are/ the standlights, with a much longer duration than the usual little LED standlights that shine for a few tens of seconds. This could be particularly appreciated in foggy conditions where penlight-battery lights don't quite cut the mustard, but generator lights are at least adequate. Of course in really, ~Really~ thick fog, one would want something brighter than 3 watts can illuminate. Or just stay off the road altogether. cheers, Tom -- Nothing is safe from me. Above address is just a spam midden. I'm really at: tkeats curlicue vcn dot bc dot ca
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Date: 02 Feb 2007 14:57:28
From: Stephen Harding
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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Tom Keats wrote: > Of course in really, ~Really~ thick fog, one would want > something brighter than 3 watts can illuminate. Or > just stay off the road altogether. You've got to figure out how to mount one of those tow truck yellow flashing light bars on your bike! SMH
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Date: 31 Jan 2007 17:50:30
From: Chalo
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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Pat Lamb wrote: > > Thinking about this on the way home last night; OK, your normal HID light > seems to run around $500. Is the precision optics for this really worth > another $500? I think it's very hard to justify even the minimum price of an HID light, considering the relatively short lifespan of HID bulbs and their high replacement costs. High flux LEDs like the Luxeon K2 and Cree Xlamp XR-E are beginning to offer HID-like intensity at equal or better efficiencies-- along with outstanding robustness, unprecedented longevity, and inexpensive driver electronics. I believe that these LEDs combined with lithium batteries (like those in the latest generation of DeWalt cordless power tools) and built-in st battery management systems will characterize the next generation of high performance bike lights. As the performance of LEDs rises to the point that 2-4 watts really does produce enough light for a satisfactory headlamp, there may be a resurgence in the use of sidewall generators and dynohubs. Active power management and ultracapacitors for standlight capability would make such generators more useful than ever before. Chalo
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Date: 01 Feb 2007 19:05:40
From: Gooserider
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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"Chalo" <chalo.colina@gmail.com > wrote in message news:1170294630.152830.64860@v33g2000cwv.googlegroups.com... > Pat Lamb wrote: >> >> Thinking about this on the way home last night; OK, your normal HID light >> seems to run around $500. Is the precision optics for this really worth >> another $500? > > I think it's very hard to justify even the minimum price of an HID > light, considering the relatively short lifespan of HID bulbs and > their high replacement costs. High flux LEDs like the Luxeon K2 and > Cree Xlamp XR-E are beginning to offer HID-like intensity at equal or > better efficiencies-- along with outstanding robustness, unprecedented > longevity, and inexpensive driver electronics. I believe that these > LEDs combined with lithium batteries (like those in the latest > generation of DeWalt cordless power tools) and built-in st battery > management systems will characterize the next generation of high > performance bike lights. > > As the performance of LEDs rises to the point that 2-4 watts really > does produce enough light for a satisfactory headlamp, there may be a > resurgence in the use of sidewall generators and dynohubs. Active > power management and ultracapacitors for standlight capability would > make such generators more useful than ever before. > > Funny you should mentioni that. DiNotte, makers of very nice 3W and 5W Luxeon lights, have been looking at developing a model for use with a dynohub. I emailed DiNotte about this and they said it was do-able, but that the price for the light would be very high. Mike
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Date: 02 Feb 2007 20:18:06
From: Frank Miles
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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In article <45c2804f$0$8948$4c368faf@roadrunner.com >, Gooserider <Gooserider@mouse-potato.com > wrote: > >"Chalo" <chalo.colina@gmail.com> wrote in message >news:1170294630.152830.64860@v33g2000cwv.googlegroups.com... >> Pat Lamb wrote: >>> >>> Thinking about this on the way home last night; OK, your normal HID light >>> seems to run around $500. Is the precision optics for this really worth >>> another $500? >> >> I think it's very hard to justify even the minimum price of an HID >> light, considering the relatively short lifespan of HID bulbs and >> their high replacement costs. High flux LEDs like the Luxeon K2 and >> Cree Xlamp XR-E are beginning to offer HID-like intensity at equal or >> better efficiencies-- along with outstanding robustness, unprecedented >> longevity, and inexpensive driver electronics. I believe that these >> LEDs combined with lithium batteries (like those in the latest >> generation of DeWalt cordless power tools) and built-in st battery >> management systems will characterize the next generation of high >> performance bike lights. >> >> As the performance of LEDs rises to the point that 2-4 watts really >> does produce enough light for a satisfactory headlamp, there may be a >> resurgence in the use of sidewall generators and dynohubs. Active >> power management and ultracapacitors for standlight capability would >> make such generators more useful than ever before. >> >> > >Funny you should mentioni that. DiNotte, makers of very nice 3W and 5W >Luxeon lights, have been looking at developing a model for use with a >dynohub. I emailed DiNotte about this and they said it was do-able, but that >the price for the light would be very high. Interesting. The parts cost shouldn't be all that high, and the design shouldn't be all that hard to do (speaking as an EE). What's daunting to me is the mechanical packaging. I've got a homebrew lighting system now (sorry, based on a large rechargable battery, halogen front, and an array of LEDs for the rear) that's pretty good but the packaging is servicable but _ugly_. The Solid light system exemplifies where I'd like to go, but packaging this is (at least for me) a real challenge. But then, IMHO I think the DiNotte lights, while nice, seem to have a pretty high k-up. -f --
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Date: 03 Feb 2007 10:11:12
From: Gooserider
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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"Frank Miles" <fpm@u.washington.edu > wrote in message news:eq069u$rr$1@gnus01.u.washington.edu... > In article <45c2804f$0$8948$4c368faf@roadrunner.com>, > Gooserider <Gooserider@mouse-potato.com> wrote: >> >>"Chalo" <chalo.colina@gmail.com> wrote in message >>news:1170294630.152830.64860@v33g2000cwv.googlegroups.com... >>> Pat Lamb wrote: >>>> >>>> Thinking about this on the way home last night; OK, your normal HID >>>> light >>>> seems to run around $500. Is the precision optics for this really >>>> worth >>>> another $500? >>> >>> I think it's very hard to justify even the minimum price of an HID >>> light, considering the relatively short lifespan of HID bulbs and >>> their high replacement costs. High flux LEDs like the Luxeon K2 and >>> Cree Xlamp XR-E are beginning to offer HID-like intensity at equal or >>> better efficiencies-- along with outstanding robustness, unprecedented >>> longevity, and inexpensive driver electronics. I believe that these >>> LEDs combined with lithium batteries (like those in the latest >>> generation of DeWalt cordless power tools) and built-in st battery >>> management systems will characterize the next generation of high >>> performance bike lights. >>> >>> As the performance of LEDs rises to the point that 2-4 watts really >>> does produce enough light for a satisfactory headlamp, there may be a >>> resurgence in the use of sidewall generators and dynohubs. Active >>> power management and ultracapacitors for standlight capability would >>> make such generators more useful than ever before. >>> >>> >> >>Funny you should mentioni that. DiNotte, makers of very nice 3W and 5W >>Luxeon lights, have been looking at developing a model for use with a >>dynohub. I emailed DiNotte about this and they said it was do-able, but >>that >>the price for the light would be very high. > > Interesting. The parts cost shouldn't be all that high, and the design > shouldn't be all that hard to do (speaking as an EE). What's daunting > to me is the mechanical packaging. I've got a homebrew lighting system > now (sorry, based on a large rechargable battery, halogen front, and > an array of LEDs for the rear) that's pretty good but the packaging is > servicable but _ugly_. The Solid light system exemplifies where I'd like > to go, but packaging this is (at least for me) a real challenge. > > But then, IMHO I think the DiNotte lights, while nice, seem to have a > pretty high k-up. > I think DiNotte is a pretty small company, and are dealing with economy of scale, and all that. Their AA powered batteries are comparably priced with other equivalent lights. The Lithium Ion lights are pretty expensive though. Still, I have no problem paying for quality and good design. DiNotte's decision to avoid proprietary batteries with their rechargeable AA line sold me on them.
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Date: 01 Feb 2007 17:19:18
From: Stephen Harding
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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Chalo wrote: > As the performance of LEDs rises to the point that 2-4 watts really > does produce enough light for a satisfactory headlamp, there may be a > resurgence in the use of sidewall generators and dynohubs. Active > power management and ultracapacitors for standlight capability would > make such generators more useful than ever before. I'm currently using a B&M generator with a B&M 6V/3W headlight and am very pleased with the lighting quality on road or bike path. I've also run the light at 2.4W with little difference in lighting capacity. Since they have a model with a built in LED for standlight purposes, it seems we're already where you think we might go! The only bad thing about the light is its bulb is hard to find with only about a 100 hour lifespan. LEDs could really help in that area. SMH
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Date: 31 Jan 2007 20:40:04
From: Pat Lamb
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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On Sun, 28 Jan 2007 10:59:05 -0500, Gooserider wrote: > http://www.peterwhitecycles.com/bigbang.asp > > Wow. Looks very impressive. Ridiculously pricy, though. A grand for a bike > light? Still, impressive technology. Thinking about this on the way home last night; OK, your normal HID light seems to run around $500. Is the precision optics for this really worth another $500? Pat
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Date: 28 Jan 2007 08:07:44
From:
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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On Jan 28, 10:59 am, "Gooserider" <Gooseri...@mouse-potato.com > wrote: > http://www.peterwhitecycles.com/bigbang.asp > > Wow. Looks very impressive. Ridiculously pricy, though. A grand for a bike > light? Still, impressive technology. It's good a "bright light" manufacturer has finally discovered optics! However, I don't think a bike headlight has any need to be as bright as a car headlight. Unless, that its, you're descending mountain roads at 55 mph at night. - Frank Krygowski
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Date: 28 Jan 2007 11:28:24
From: Patrick Lamb
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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On 28 Jan 2007 08:07:44 -0800, frkrygow@gmail.com wrote: > >However, I don't think a bike headlight has any need to be as bright >as a car headlight. Unless, that its, you're descending mountain >roads at 55 mph at night. I expect those who ride 55 mph down fire roads and through swamps at night will chip in shortly... Pat Email address works as is.
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Date: 28 Jan 2007 17:02:44
From: Bill Baka
Subject: Re: Busch & Mueller "Big Bang"---the ultimate bike light?
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Patrick Lamb wrote: > On 28 Jan 2007 08:07:44 -0800, frkrygow@gmail.com wrote: >> However, I don't think a bike headlight has any need to be as bright >> as a car headlight. Unless, that its, you're descending mountain >> roads at 55 mph at night. > > I expect those who ride 55 mph down fire roads and through swamps at > night will chip in shortly... > > Pat > > Email address works as is. Chip. The light looks impressive, almost too bright for a bicycle, and at a kilobuck, way more than I would ever spend on a light. I ride at night when it's decent outside and the meager light from my Cateye is enough for any sane speed on a trail. About 15 MPH is my sanity limit at night unless it is a full moon night where I don't really need the light at all for off road. OK, I'm nuts to ride by moonlight only, but it is nice to be able to ride past the houses with dogs and not have the dogs even know I went by. That light looks like it might ruin my night vision for looking to the side for something out of the beam path. A thousand bucks would sure allow me to trick out my ride, so compare that to just a high rent headlight. Anybody want to guess how much you could spend on the ultimate ride? Start with a thousand dollar light and build a bike around it. Not me. Bill Baka
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