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28-06.-2008, 04:22 AM
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#16 |
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Re: Anyone use bike generator lights anymore?
On Fri, 27 Jun 2008 09:38:26 -0700 (PDT), Frank Krygowski
<frkrygow@gmail.com> wrote: >> And SJSC does seem to price a bit higher than some other UK shops that >> do international sales. > >Do you have other UK shops to recommend? (Not that I buy much these >days, but I sometimes want stuff that is tough to find west of the >Atlantic.) Not in the UK <http://www.roseversand.de/output/controller.aspx?cid=156&detail=90&detail2=423> but highly recommended. |
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28-06.-2008, 04:34 AM
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#17 |
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Re: Anyone use bike generator lights anymore?
"SMS" <scharf.steven@geemail.com> wrote in message
news:LVa9k.6878$cW3.5801@nlpi064.nbdc.sbc.com... > Cute, but maybe instead you could point out anything that isn't accurate > on that page. No one has been able to do so in the years that it's been > up. "I wish that it were possible for inexpensive, dynamo powered lights to provide adequate illumination for commuting, but it isn't" That's not accurate. There, that was easy, wasn't it. |
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28-06.-2008, 06:01 AM
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#18 |
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Re: Anyone use bike generator lights anymore?
Tim McNamara wrote:
> In terms of pricing, the weak dollar and increasing shipping fees due to > fuel costs will make ordering from European suppliers more expensive. You probably mean Germany, that's partly due to those dumbasses aka Deutsch Post/DHL which still have a monopoly there. |
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28-06.-2008, 06:02 AM
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#19 |
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Re: Anyone use bike generator lights anymore?
On Jun 27, 3:05*pm, "Tom Kunich" <cyclintom@yahoo. com> wrote:
> "Clive George" <cl...@xxxx-x.fsnet.co.uk> wrote in message > > news:48-dncKWNsWv3PjVnZ2dnUVZ8uydnZ2d@posted.plusnet... > > > "SMS" <scharf.ste...@geemail.com> wrote in message > >news:LVa9k.6878$cW3.5801@nlpi064.nbdc.sbc.com... > > >> Cute, but maybe instead you could point out anything that isn't accurate > >> on that page. No one has been able to do so in the years that it's been > >> up. > > > "I wish that it were possible for inexpensive, dynamo powered lights to > > provide adequate illumination for commuting, but it isn't" > > > That's not accurate. > > > There, that was easy, wasn't it. > > I have to wonder if you've used such lights. Bicycle dynamos typically > deliver only 2 Watts to a front lamp and 1 W to a rear. This is insufficient > light to light your pathway. In Europe it is expected only to make you > visible to traffic. Well, IME, once you get up to 30mph or so, actually they start working pretty well. Great training, too. --D-y |
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28-06.-2008, 06:10 AM
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#20 |
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Re: Anyone use bike generator lights anymore?
dustoyevsky@mac.com wrote:
>> I have to wonder if you've used such lights. Bicycle dynamos typically >> deliver only 2 Watts to a front lamp and 1 W to a rear. This is insufficient >> light to light your pathway. In Europe it is expected only to make you >> visible to traffic. > > Well, IME, once you get up to 30mph or so, actually they start working > pretty well. I think he meant 2.4W to the front and .6W to the rear. The IQ Fly is as bright as it gets by just pushing the bike while walking, though 'flashing' with a hub dynamo. |
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28-06.-2008, 06:24 AM
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#21 |
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Re: Anyone use bike generator lights anymore?
"Tom Kunich" <cyclintom@yahoo. com> wrote in message
news:WIadncKyZPqV1fjVnZ2dnUVZ_jmdnZ2d@earthlink.com... > "Clive George" <clive@xxxx-x.fsnet.co.uk> wrote in message > news:48-dncKWNsWv3PjVnZ2dnUVZ8uydnZ2d@posted.plusnet... >> "SMS" <scharf.steven@geemail.com> wrote in message >> news:LVa9k.6878$cW3.5801@nlpi064.nbdc.sbc.com... >> >>> Cute, but maybe instead you could point out anything that isn't accurate >>> on that page. No one has been able to do so in the years that it's been >>> up. >> >> "I wish that it were possible for inexpensive, dynamo powered lights to >> provide adequate illumination for commuting, but it isn't" >> >> That's not accurate. >> >> There, that was easy, wasn't it. > > I have to wonder if you've used such lights. Bicycle dynamos typically > deliver only 2 Watts to a front lamp and 1 W to a rear. This is > insufficient light to light your pathway. In Europe it is expected only to > make you visible to traffic. 2.4 and 0.6 actually. And yes, I've used them for years, including commuting fair distances on unlit roads. clive |
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28-06.-2008, 06:34 AM
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#22 |
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Re: Anyone use bike generator lights anymore?
dustoyevsky@mac.com wrote:
> Well, IME, once you get up to 30mph or so, actually they start working > pretty well. They're adequate, in some cases, even at 15MPH, though commuters often aren't even going 15MPH. Their adequacy varies by both geographic location and rider. Riding fairly slowly on a Dutch bike path is very different than riding down a busy city street with drivers that aren't experienced in driving near cyclists. Clive was actually half-right, if he had left out the "inexpensive" part. Combine a B&M Dymotec S12 for $285, with a DToplight Plus 12 ($68) and a 5 watt Lumotec Oval Plus 12 ($82) and you've got a system that would be very usable for commuting at 20MPH in the U.S. for $438 plus shipping. For very low speed commuting on familiar, well lit roads, you could even get by with spending $50 on a Union/Marwi setup. Compare that with a 3W Cree LED headlight for $30, a $5 bracket, and a 180 degree CatEye LED tail light for $30. This system illuminates better, costs 1/6th the price (once you spend about another $30 on some NiMH batteries and a charger, and is more reliable. Steve "http://bicyclelighting.com" (or type "bicycle lighting" into the Google search bar, and click on "I'm Feeling Lucky)." |
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28-06.-2008, 06:43 AM
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#23 |
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Re: Anyone use bike generator lights anymore?
On 2008-06-27, Tom Kunich <cyclintom@yahoo> wrote:
| I have to wonder if you've used such lights. Bicycle dynamos typically | deliver only 2 Watts to a front lamp and 1 W to a rear. This is insufficient | light to light your pathway. In Europe it is expected only to make you | visible to traffic. When people say 2 watts (I realize it's more like 2.4 watts) isn't enough, is that for halogen lights or LED lights? How much more efficient is a LED light than a halogen light? I've found that even a 1 watt LED light can put out a whole lot of light. (Well, they say it's 1 watt, I haven't measured it.) Granted, it's not as bright as a 15 watt halogen light, but perhaps a 5 watt halogen light? For example, I've got a Cateye HL-EL 500 which they rate at 1000 candlepower, they say it lasts 30 hours. It's quite bright. Assuming that the 4 AA batteries are 2500 mAh (good alkalines), that's an average of around 1/10th of a watt. I suspect that the actual current starts out significantly higher than that, and then it drops as the battery wears down, but even so, it seems to me that 2.4 watts into a good LED headlight (or two) ought to provide plenty of light for most needs. .... And 0.6 watts average into a blinking rear LED light would be downright blinding. -- Doug McLaren, dougmc@frenzied.us |
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28-06.-2008, 07:38 AM
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#24 |
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Re: Anyone use bike generator lights anymore?
Doug McLaren wrote:
> On 2008-06-27, Tom Kunich <cyclintom@yahoo> wrote: > > | I have to wonder if you've used such lights. Bicycle dynamos typically > | deliver only 2 Watts to a front lamp and 1 W to a rear. This is insufficient > | light to light your pathway. In Europe it is expected only to make you > | visible to traffic. > > When people say 2 watts (I realize it's more like 2.4 watts) isn't > enough, is that for halogen lights or LED lights? There are only a couple of LED dynamo powered headlights greater than 1 watt. The problem with dynamos is that they're ill-suited to powering LEDs. They put out AC power at widely varying voltage, and the electronics to rectify and regulate the output wastes at least 20% of the available power. The best LED headlight for dynamos is the Solidlight 1203D/1203DR, see "http://www.solidlights.co.uk/products/1203d.php". It has two 3 watt LEDs, so when you're moving at higher speed you can have more light if the dynamo is putting out sufficient power. It costs £150.00, or just about $300. |
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28-06.-2008, 07:54 AM
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#25 |
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Re: Anyone use bike generator lights anymore?
In article <UZd9k.134$zv7.52@flpi143.ffdc.sbc.com>, SMS says...
> >Doug McLaren wrote: >> On 2008-06-27, Tom Kunich <cyclintom@yahoo> wrote: >> >> | I have to wonder if you've used such lights. Bicycle dynamos typically >>| deliver only 2 Watts to a front lamp and 1 W to a rear. This is insufficient >> | light to light your pathway. In Europe it is expected only to make you >> | visible to traffic. >> >> When people say 2 watts (I realize it's more like 2.4 watts) isn't >> enough, is that for halogen lights or LED lights? > >There are only a couple of LED dynamo powered headlights greater than 1 >watt. The problem with dynamos is that they're ill-suited to powering >LEDs. They put out AC power at widely varying voltage, and the >electronics to rectify and regulate the output wastes at least 20% of >the available power. > >The best LED headlight for dynamos is the Solidlight 1203D/1203DR, see >"http://www.solidlights.co.uk/products/1203d.php". It has two 3 watt >LEDs, so when you're moving at higher speed you can have more light if >the dynamo is putting out sufficient power. It costs £150.00, or just >about $300. > > For $300, you'd think a little more effort would have gone into putting it into anything but a plain, plastic box. It might be the best light in the world but sheesh, comon'...being ugly is not a good selling point. twitch (who is a fairweather bike rider and avoids the dark) |
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28-06.-2008, 07:58 AM
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#26 |
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Re: Anyone use bike generator lights anymore?
In article <LVa9k.6878$cW3.5801@nlpi064.nbdc.sbc.com>,
SMS <scharf.steven@geemail.com> wrote: > Clive George wrote: > > "SMS" <scharf.steven@geemail.com> wrote in message > > news:%W99k.29084$ZE5.24118@nlpi061.nbdc.sbc.com... > >> Clive George wrote: > >>> "Ablang" <ron916@gmail.com> wrote in message > >>> news:d6459cbc-ebcd-48a0-82e8-86d9a6e58233@f1g2000prb.googlegroups. > >>> com... > >>>> No one seems to be talking about it, and I can't even find a > >>>> good place online to order them from. > >>>> > >>>> Does anyone have a site for that stuff, or is it being phased > >>>> out? > >>> > >>> Has it really been that long since the last "dynamos are > >>> fine"/"no they're not, you must have 3GW battery lights to be > >>> safe" thread? > >> > >> Hmm, I've been reading this group for years, and never saw anyone > >> claim that 3GW worth of lights were necessary to be safe. > > > > No, but there is some numpty who always pops up saying dynamo > > lights aren't safe for road use, and has written a web page which > > he claims is unbiased but still pushes that claim. > > > >> The poster asked for a site for dynamo lighting equipment, and it > >> was provided. Don't try to turn it into a thread on batteries > >> versus generators. If he wants biased and potentially unhelpful > >> information on the dynamo versus battery trade-offs it can be > >> found by typing "bicycle dynamo expert" into the Google search > >> bar, and then clicking on "I'm Feeling Lucky." > > > > I fixed your post for you. > > Cute, but maybe instead you could point out anything that isn't > accurate on that page. No one has been able to do so in the years > that it's been up. Bullshit, Steven, you've had dozens of replies in previous threads pointing out errors on your Web page. The problem is that you are incapable of accepting that your notions about dynamo lighting systems are incorrect. |
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28-06.-2008, 08:02 AM
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#27 |
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Guest
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Re: Anyone use bike generator lights anymore?
In article <WIadncKyZPqV1fjVnZ2dnUVZ_jmdnZ2d@earthlink.com>,
"Tom Kunich" <cyclintom@yahoo. com> wrote: > "Clive George" <clive@xxxx-x.fsnet.co.uk> wrote in message > news:48-dncKWNsWv3PjVnZ2dnUVZ8uydnZ2d@posted.plusnet... > > "SMS" <scharf.steven@geemail.com> wrote in message > > news:LVa9k.6878$cW3.5801@nlpi064.nbdc.sbc.com... > > > >> Cute, but maybe instead you could point out anything that isn't > >> accurate on that page. No one has been able to do so in the years > >> that it's been up. > > > > "I wish that it were possible for inexpensive, dynamo powered > > lights to provide adequate illumination for commuting, but it > > isn't" > > > > That's not accurate. > > > > There, that was easy, wasn't it. > > I have to wonder if you've used such lights. Bicycle dynamos > typically deliver only 2 Watts to a front lamp and 1 W to a rear. > This is insufficient light to light your pathway. In Europe it is > expected only to make you visible to traffic. The question is whether *you* have used these lights. Sheesh. For one thing, it/s 2.4W to the headlamp and 0.6W to the taillamp that is the standard for these designs. For another, it's pretty common to use a battery LED lamp on the rear and a 3W headlamp. The development of better LEDs looks to supplant the halogen bulb pretty soon, with better reliability, longer service life and potentially brighter light. |
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28-06.-2008, 08:10 AM
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#28 |
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Re: Anyone use bike generator lights anymore?
SMS wrote:
----------8<------------ > better, costs 1/6th the price (once you spend about another $30 on some > NiMH batteries and a charger, and is more reliable. zzzzzzzzzzzz > Steve > "http://bicyclelighting.com" (or type "bicycle lighting" into the Google > search bar, and click on "I'm Feeling Lucky)." |
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28-06.-2008, 08:16 AM
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#29 |
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Re: Anyone use bike generator lights anymore?
Tim McNamara wrote:
>> In article <LVa9k.6878$cW3.5801@nlpi064.nbdc.sbc.com>, >> SMS <scharf.steven@geemail.com> wrote: > Bullshit, Steven, you've had dozens of replies in previous threads > pointing out errors on your Web page. The problem is that you are > incapable of accepting that your notions about dynamo lighting systems > are incorrect. Yet people still see fit in stroking his ego by replying to his hot turds posted here. |
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28-06.-2008, 08:18 AM
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#30 |
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Guest
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Re: Anyone use bike generator lights anymore?
In article <v1d9k.74$vn7.29@flpi147.ffdc.sbc.com>,
SMS <scharf.steven@geemail.com> wrote: > dustoyevsky@mac.com wrote: > > > Well, IME, once you get up to 30mph or so, actually they start > > working pretty well. > > They're adequate, in some cases, even at 15MPH, though commuters > often aren't even going 15MPH. Their adequacy varies by both > geographic location and rider. Riding fairly slowly on a Dutch bike > path is very different than riding down a busy city street with > drivers that aren't experienced in driving near cyclists. > > Clive was actually half-right, if he had left out the "inexpensive" > part. Combine a B&M Dymotec S12 for $285, with a DToplight Plus 12 > ($68) and a 5 watt Lumotec Oval Plus 12 ($82) and you've got a system > that would be very usable for commuting at 20MPH in the U.S. for $438 > plus shipping. For very low speed commuting on familiar, well lit > roads, you could even get by with spending $50 on a Union/Marwi > setup. > > Compare that with a 3W Cree LED headlight for $30, a $5 bracket, and > a 180 degree CatEye LED tail light for $30. This system illuminates > better, costs 1/6th the price (once you spend about another $30 on > some NiMH batteries and a charger, and is more reliable. More of your inaccurate bullshit that need correction, Steve. Jeez Louise, do we have to go through this in EVERY F*****G THREAD on this topic or will you finally comprehend the simple, simple facts that have thus far eluded you? I not only commute, I do all-night long brevets using a 20+ year old Sanyo bottom bracket generator and a Lumitec 3W headlamp. Works great, plenty of light. 40 mph downhill, just fine (but blows the headlight sometimes, I need to put some regulation in between the dynamo and the lamp). And contrary to your asinine examples cherry picking the most expensive combinations of dynamo lighting systems, my system cost me about $25 total. I have another system on another bike with a Schmidt SON and Lumotec Oval lamp, which did cost $230 or so back in 2003. It has been trouble free, utterly reliable and dead simple to use. Equally reliable and much less expensive options for hub dynamos are readily available from Shimano. Lots of other folks- Clive and Frank, just to name two- have told you that these simple systems work just fine. You're the one convinced that something approaching klieg lights are essential for commuting, and you're flat wrong. You've been told many times but you refuse to accept plain fact because it contradicts your beliefs. If you can't see adequately at night with that system, you need to have an examination to rule out night blindness. > Steve "http://bicyclelighting.com" (or type "bicycle lighting" into > the Google search bar, and click on "I'm Feeling Lucky)." You say this as if it has some sort of relevance. |
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