old bottle generators and lamps
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old bottle generators and lamps
I have an older bottle generator and a headlamp/taillamp.
The tail lamp has no bulb; the headlamp has a bulb and works great.
My question being what is the typical voltage for forward/aft lights when run off a generator? I tried putting a 2.2v in the tail lamp, but in this configuration neither lamp would light.
Does a tail lamp use an even lower voltage bulb? Or is the generator to blame?
Thanks,
philip
The tail lamp has no bulb; the headlamp has a bulb and works great.
My question being what is the typical voltage for forward/aft lights when run off a generator? I tried putting a 2.2v in the tail lamp, but in this configuration neither lamp would light.
Does a tail lamp use an even lower voltage bulb? Or is the generator to blame?
Thanks,
philip
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If your generator is a 6-volt 3-watt one, which is the most common, you want a 6-volt, 0.6-watt taillight bulb and a 6-volt, 2.4-watt headlight bulb. When (not if) the headlight bulb fails, it will probably nuke the taillight bulb in a matter of seconds. When (not if) the taillight bulb fails, it will cause your headlight to run extra-bright, but failure is hastened. So you may want to consider a set of LED lights instead of incandescent... they don't burn out.
#3
You gonna eat that?
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#5
You gonna eat that?
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I think the most practical approach is to just get an LED light. The emission pattern of an LED is nothing like the emission pattern of an incandescent filament, so even if you could find an LED replacement, the resulting beam pattern would be all wrong.
For a cost-effective LED headlight, how about the Lyt N: https://harriscyclery.net/product/bus...light-3200.htm
For a taillight, how about... *drum roll* ...a Planet Bike SuperFlash. Or if you really want a generator-powered one, this one's cool: https://harriscyclery.net/product/bus...light-3133.htm
For a cost-effective LED headlight, how about the Lyt N: https://harriscyclery.net/product/bus...light-3200.htm
For a taillight, how about... *drum roll* ...a Planet Bike SuperFlash. Or if you really want a generator-powered one, this one's cool: https://harriscyclery.net/product/bus...light-3133.htm
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philski
#8
You gonna eat that?
I think the most practical approach is to just get an LED light. The emission pattern of an LED is nothing like the emission pattern of an incandescent filament, so even if you could find an LED replacement, the resulting beam pattern would be all wrong.
For a cost-effective LED headlight, how about the Lyt N: https://harriscyclery.net/product/bus...light-3200.htm
For a taillight, how about... *drum roll* ...a Planet Bike SuperFlash. Or if you really want a generator-powered one, this one's cool: https://harriscyclery.net/product/bus...light-3133.htm
For a cost-effective LED headlight, how about the Lyt N: https://harriscyclery.net/product/bus...light-3200.htm
For a taillight, how about... *drum roll* ...a Planet Bike SuperFlash. Or if you really want a generator-powered one, this one's cool: https://harriscyclery.net/product/bus...light-3133.htm
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https://www.home.earthlink.net/~stein...erchandise.htm
Has screw in LED replacement bulbs. Though at the time of this posting he's out of stock.
Has screw in LED replacement bulbs. Though at the time of this posting he's out of stock.
#10
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The tail lamp has no bulb; the headlamp has a bulb and works great.
[NB: voltage is the same, it's the wattage that is higher front/back,
once shared load is reduced , the remaining filament gets all the power, so overheats]
screw base headlight bulbs^ seem to be quite sparsely available of late.
Last edited by fietsbob; 08-08-11 at 06:50 PM.
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My Led bulb replacements,have TTS-1WP on the box,lots of light,no-standlight.There is one with the standlight available(details are on here somewhere).IF NOT
Lots of old style bulbs especially for this purpose on Ebay.
Lots of old style bulbs especially for this purpose on Ebay.
#12
You gonna eat that?
back to the basics ... load : 6v, 3w. typical split, 2.4w headlight, + a 0.6w taillight..
[NB: voltage is the same, it's the wattage that is higher front/back,
once shared load is reduced , the remaining filament gets all the power, so overheats]
screw base headlight bulbs^ seem to be quite sparsely available of late.
[NB: voltage is the same, it's the wattage that is higher front/back,
once shared load is reduced , the remaining filament gets all the power, so overheats]
screw base headlight bulbs^ seem to be quite sparsely available of late.
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https://www.bikeforums.net/showthread...dynohub-lights
Since then, I actually got a friend in Germany to send me a couple of the rear-led-bulbs-with-built-in-standlight -- they work great, so far! Unfortunately, the seller won't ship to North America. No equivalent headlamp bulb is available, AFAIK.
I've got a vintange-headlamp-with-serious-LEDs-and-standlight project on the back burner; it looks like it'll be a pain to build.
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