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LED bulbs

Charging System, Wiring, Lighting
bikedoctor99
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headlight

Post by bikedoctor99 » Wed Jan 19, 2011 12:00 pm

Spargett- just looked at my invoice from CandlepowerInc. 6 3/8 (162mm) Quartz Halogen Headlamp code# 8022LR--plus--4745 I think that 4745 is for the 45/45w bulb that I ordered. Hope that this will clarify your problems--- lamp fits just fine for my '63 cb77. allan

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Snakeoil
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Location: Upstate NY

Post by Snakeoil » Wed Jan 19, 2011 4:22 pm

I want to put an LED tailight in my CL77 as well and after seeing this post, I did some more research on other brands and styles. The superbrites seem to be the only ones out there offering a "bulb" that has red LEDs facing rearward and white LEDs shining radially outward. It's a nice touch on their part. There are other brand, like Bluhm, but they offer all one color, either white, red, amber or blue. For some reason, the white ones are more expensive than the other colors.

There are a number of other offerings, but most only shine rearwards, which should mean no license plate illumination. I don't really care because I don't intend to ride at night with this bike. But others I'm sure would be interested in having the plate lit. In NYS, it's a legal requirement.

I've been kicking around the idea of modifying an old headlight to take a white LED tail light bullb since I don't plan to ride at night. It should give the impression of high and low beams to an inspector and take a big load off the charging system. It's just one of those things I'll monkey with when I have nothing else to do.

regards,
Rob

e3steve
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Post by e3steve » Thu Jan 20, 2011 7:05 am

Snakeoil wrote:I want to put an LED tailight in my CL77 as well and after seeing this post, I did some more research on other brands and styles. The superbrites seem to be the only ones out there offering a "bulb" that has red LEDs facing rearward and white LEDs shining radially outward. It's a nice touch on their part.
Goffy's LEDACE 25RST, part# LD25RsST, is this type. I use one and my only crit is the fact that the difference between tail & brake is a a bit too subtle.
Snakeoil wrote:There are other brand, like Bluhm, but they offer all one color, either white, red, amber or blue. For some reason, the white ones are more expensive than the other colors.
Waterclear, white-light LEDs are more expensive to produce.
Snakeoil wrote:I've been kicking around the idea of modifying an old headlight to take a white LED tail light bullb since I don't plan to ride at night. It should give the impression of high and low beams to an inspector and take a big load off the charging system. It's just one of those things I'll monkey with when I have nothing else to do.

regards,
Rob
Problem with that idea, Rob, is that reproducing the beam pattern would be near impossible with few LEDs as that their light output, although intense, is very unidirectional. You'd need a hundred (or so) tiny, surface-mount LEDs, in a hemispherical array and blasting their collective output omni-directionally at the reflector. You could probably make twenty or thirty 5mm waterclears work, but the pattern (on a beamsetter) possibly wouldn't pass muster for the road test -- at least it wouldn't in UK or many other-Euro communities.

Worth a try, if you have the time to spend, as you say.

e3steve
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Post by e3steve » Thu Jan 20, 2011 7:34 am

Spargett wrote:Yup, I ordered the 6 3/8" headlamp and it was too small. I couldn't figure out a way to fasten in the headlamp ring. There was just too much room for the existing clips to take up. It was a very awkward gap. If anyone has any tricks, I'm all ears.
Your obs surprised me, Scott; and although I concede that the CP unit is a tad smaller, it fitted into my ring (!) and hasn't moved with the three clips in place. Within this thread is my take on the conversion; hope you can get it to work for you, mucker!

bikedoctor99
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Location: North Jersey

too small

Post by bikedoctor99 » Thu Jan 20, 2011 8:37 am

Spargett wrote:Yup, I ordered the 6 3/8" headlamp and it was too small. I couldn't figure out a way to fasten in the headlamp ring. There was just too much room for the existing clips to take up. It was a very awkward gap. If anyone has any tricks, I'm all ears.
My lamp fit with a bit of nudging so I didn't have to solve any problems of making a proper fit, I don't anticipate any fit related problems. Can the spring clips be bent slightly to apply more holding tension? (I would make sure that spares are available) I do remember that the lamp did require centering within the rim. Good luck.

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Snakeoil
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Post by Snakeoil » Thu Jan 20, 2011 11:25 am

[quote="e3steveGoffy's LEDACE 25RST, part# LD25RsST, is this type. I use one and my only crit is the fact that the difference between tail & brake is a a bit too subtle.

Problem with that idea, Rob, is that reproducing the beam pattern would be near impossible with few LEDs as that their light output, although intense, is very unidirectional. You'd need a hundred (or so) tiny, surface-mount LEDs, in a hemispherical array and blasting their collective output omni-directionally at the reflector. You could probably make twenty or thirty 5mm waterclears work, but the pattern (on a beamsetter) possibly wouldn't pass muster for the road test -- at least it wouldn't in UK or many other-Euro communities.

Worth a try, if you have the time to spend, as you say.[/quote]

Steve,
Inspection here in NY is only a matter of seeing the beams work. No pattern test. I actually run a 12v bulb in my 6 volt S90 because I could get the right base only in 12v locally. Not very bright, but passed inspection. Although I must admit that I think the guy in the shop was falling in love with the little bike and would have passed it if I had a couple of candles taped to the handlebars.

I think I'll peruse the local auto parts store to see what kind of LED 1157 replacements they have.

regards,
Rob

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Snakeoil
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Re: too small

Post by Snakeoil » Thu Jan 20, 2011 11:28 am

bikedoctor99 wrote:
Spargett wrote:Yup, I ordered the 6 3/8" headlamp and it was too small. I couldn't figure out a way to fasten in the headlamp ring. There was just too much room for the existing clips to take up. It was a very awkward gap. If anyone has any tricks, I'm all ears.
My lamp fit with a bit of nudging so I didn't have to solve any problems of making a proper fit, I don't anticipate any fit related problems. Can the spring clips be bent slightly to apply more holding tension? (I would make sure that spares are available) I do remember that the lamp did require centering within the rim. Good luck.
Just a thought here. If you coated the rim and light with silicone spray or a light grease like Vaseline, you could probably take up any space with a bead of clear silicone sealant or similar. It would keep the light centered, give it a little shock protection and be removeable in the future.

regards,
Rob

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