two-fer
#1
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short WIDE Clyde
Joined: Sep 2016
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From: Oil City,PA USA
Bikes: 2014 Nashbar flatbar roadbike
two-fer
Howdy folks, some of y'all have a pretty solid grasp on electrical stuff... I know next to nothing. is there a way I can power two Planet Bike blaze headlightshttps://smile.amazon.com/Planet-Bike...e+dynamo+light from one dynohub. I'm not opposed to using the hub for one and a sidewall drive(I don't race so I don't care about extra drag) for the other if necessary
Last edited by keg61; 07-27-17 at 09:53 PM.
#3
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From: Michigan
Bikes: Windsor Fens, Giant Seek 0 (2014, Alfine 8 + discs)
It says it needs 2.4 watts. If your hub puts out double that, you should be good. Factor in taillight too if you are wiring that to the hub.
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#4
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short WIDE Clyde
Joined: Sep 2016
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From: Oil City,PA USA
Bikes: 2014 Nashbar flatbar roadbike
it's a standard 6v/3w hub, I've never heard of one that puts out 4,8w that's why I asked, i'm pretty sure I read somewhere about LEDs requiring such low power that a single hub could power more than one headlight if not using a tail light, but I don't have the foggiest idea where I read it or if it even was a true statement. I have no problem using a battery tail light if it allows me extra light up front, some of the new tail lights seem to flash dam near forever on fresh batteries
#5
aka Tom Reingold




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From: New York, NY, and High Falls, NY, USA
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
The lights may not provide full brightness until you're going fast, say 15 mph, but I know one person who did this, and he said it worked reasonably well. I don't remember which headlights he used.
But why do you want to do this?
But why do you want to do this?
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Tom Reingold, tom@noglider.com
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“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
#6
Senior Member

Joined: Sep 2015
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From: New Jersey
Howdy folks, some of y'all have a pretty solid grasp on electrical stuff... I know next to nothing. is there a way I can power two Planet Bike blaze headlightshttps://smile.amazon.com/Planet-Bike...e+dynamo+light from one dynohub. I'm not opposed to using the hub for one and a sidewall drive(I don't race so I don't care about extra drag) for the other if necessary
If you're on a budget, the Spanninga Kendo is probably the cheapest light you can get that is worth buying...but even that is not quite as nice as, say, a B&M Cyo Premium...
#7
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short WIDE Clyde
Joined: Sep 2016
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From: Oil City,PA USA
Bikes: 2014 Nashbar flatbar roadbike
my reason is that for 40 years I had jobs that required working at night, starting on the farm, thru the oil field, heavy equipment operator, and truck driver and i feel strongly that you can never have too much light. I see lots of claims about different lights but never have I seen evidence that any single light provides the field of view I want, they all have compromises. I'm thinking multiple lights aimed to create a flood of illumination would accomplish what I want. needing speed to get the lights going is no problem, I'm most concerned with lighting up a couple of specific hills that that will easily exceed 20mph. I understand the high dollar battery lights throw a long projection, I'm thinning a spot light aimed up the center with more of a flood effect to the sides... dammit! I forgot to mention, I like Planet Bike products, in general, is why I specifically asked about the blaze
Last edited by keg61; 07-30-17 at 08:33 PM.
#8
aka Tom Reingold




Joined: Jan 2009
Posts: 44,172
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From: New York, NY, and High Falls, NY, USA
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
Sounds like a good reason to me. Let us know how it works.
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Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog
“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog
“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author
Please email me rather than PM'ing me. Thanks.
#9
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From: NW,Oregon Coast
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Consider a dynamo & a battery version as your combo,
both QR handle bar mounts. to take them off and pocket when you lock up your bike at work/school.
battery light will stay on when you slow down enough to have the dynamo one dim.
I think the dynamo one has a standlight capacitor to keep the light on a while at stoplights..
....
both QR handle bar mounts. to take them off and pocket when you lock up your bike at work/school.
battery light will stay on when you slow down enough to have the dynamo one dim.
I think the dynamo one has a standlight capacitor to keep the light on a while at stoplights..
....
Last edited by fietsbob; 08-03-17 at 03:51 PM.
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