I have an old cateye dual daylight system (push fit flange bulbs), the battery has died again, and I am fed up with haveing to charge lights every few days. I often forget. So am strongly thinking of getting a dynamo system.
The Shimano NX32 6V 3W Dynohub with Mavic Rim look nice.
What bulb(s) do I need. Do I need special dynamo bulbs, or will any 6V3W push fit bulb do.
Can I use cateye 2.4 W bulbs?
Martin.
-- According to the human genome project, humans are 50-60% bananas. When emailing me, please include the word Banana in the subject line.
I have an old cateye dual daylight system (push fit flange bulbs), the battery has died again, and I am fed up with haveing to charge lights every few days. I often forget. So am strongly thinking of getting a dynamo system.
The Shimano NX32 6V 3W Dynohub with Mavic Rim look nice.
What bulb(s) do I need. Do I need special dynamo bulbs, or will any 6V3W push fit bulb do.
The latter, usually made by Philips or Reflectalite.
"Martin Dann" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
I have an old cateye dual daylight system (push fit flange bulbs), the battery has died again, and I am fed up with haveing to charge lights every few days. I often forget. So am strongly thinking of getting a dynamo system.
The Shimano NX32 6V 3W Dynohub with Mavic Rim look nice.
What bulb(s) do I need. Do I need special dynamo bulbs, or will any 6V3W push fit bulb do.
Can I use cateye 2.4 W bulbs?
You don't need any bulbs at all.
If you do have any bulbs, best plant them in the ground and watch them grow.
Might I suggest you use lamps instead ...... if you put electricity through *lamps*, then they glow. Bulbs *grow*.
"Martin Dann" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
Quoted message said:
I have an old cateye dual daylight system (push fit flange bulbs), the battery has died again, and I am fed up with haveing to charge lights every few days. I often forget. So am strongly thinking of getting a dynamo system.
Quoted message said:
Quoted message said:
The Shimano NX32 6V 3W Dynohub with Mavic Rim look nice.
Quoted message said:
Quoted message said:
What bulb(s) do I need. Do I need special dynamo bulbs, or will any 6V3W push fit bulb do.
Quoted message said:
Quoted message said:
Can I use cateye 2.4 W bulbs?
Quoted message said:
You don't need any bulbs at all.
Quoted message said:
If you do have any bulbs, best plant them in the ground and watch them grow.
Quoted message said:
Might I suggest you use lamps instead ...... if you put electricity through *lamps*, then they glow. Bulbs *grow*.
The word "bulb" refers to the shape, seeds grow, bulbs are just bulb shaped.
I have an old cateye dual daylight system (push fit flange bulbs), the battery has died again, and I am fed up with haveing to charge lights every few days. I often forget. So am strongly thinking of getting a dynamo system.
The Shimano NX32 6V 3W Dynohub with Mavic Rim look nice.
What bulb(s) do I need. Do I need special dynamo bulbs, or will any 6V3W push fit bulb do.
Can I use cateye 2.4 W bulbs?
If you're not running a tail-light it won't be a huge amount of time before you blow it. It'll work as an emergency spare, maybe for a few months, but it'll blow well within the life of a 3W bulb.
I got Roos an Ultegra hub built into a wheel and a B&M Lumotec Oval Senso Plus (with a 3W bulb) for Christmas, and it's done very well. The lamp has a light sensor and just turns itself on as light falls. Sounds gimmicky but works very well, and eliminating the mechanical switch makes it potentially more reliable.
Pete. -- Peter Clinch Medical Physics IT Officer Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital Fax 44 1382 640177 Dundee DD1 9SY Scotland UK net [email hidden] http://www.dundee.ac.uk/~pjclinch/
I have an old cateye dual daylight system (push fit flange bulbs), the battery has died again, and I am fed up with haveing to charge lights every few days. I often forget. So am strongly thinking of getting a dynamo system.
The Shimano NX32 6V 3W Dynohub with Mavic Rim look nice.
What bulb(s) do I need. Do I need special dynamo bulbs, or will any 6V3W push fit bulb do.
This still won't protect the bulb from overvoltage on descents, as a batterylight won't have the necessary zehner to limit overvoltage. --- Marten Gerritsen
If you're not running a tail-light it won't be a huge amount of time before you blow it. It'll work as an emergency spare, maybe for a few months, but it'll blow well within the life of a 3W bulb.
IME the Shimano smart switch stops this happening.
IME the Shimano smart switch stops this happening.
All very well if you have a Shimano Smart Switch... but I don't! And I've blown up a couple of 2.4s in the SON powered Brom setup (first was finding out the hard way that's what happens, 2nd was its replacement which I had handy at the time but then lost the Round Tuit to get a proper 3W replacement before it also went Foom some time later).
Pete. -- Peter Clinch Medical Physics IT Officer Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital Fax 44 1382 640177 Dundee DD1 9SY Scotland UK net [email hidden] http://www.dundee.ac.uk/~pjclinch/
If you do have any bulbs, best plant them in the ground and watch them grow.
Might I suggest you use lamps instead ...... if you put electricity through *lamps*, then they glow. Bulbs *grow*.
www.dictionary.com gives a number of definitions of "bulb", one of which is "An incandescent lamp or its glass housing". Perhaps you should write to them to let them know they've got it wrong.
If you do have any bulbs, best plant them in the ground and watch them grow.
Might I suggest you use lamps instead ...... if you put electricity through *lamps*, then they glow. Bulbs *grow*.
www.dictionary.com gives a number of definitions of "bulb", one of which is "An incandescent lamp or its glass housing". Perhaps you should write to them to let them know they've got it wrong.
Might I suggest you use lamps instead ...... if you put electricity through *lamps*, then they glow. Bulbs *grow*.
www.dictionary.com gives a number of definitions of "bulb", one of which is "An incandescent lamp or its glass housing". Perhaps you should write to them to let them know they've got it wrong.
If you're not running a tail-light it won't be a huge amount of time before you blow it. It'll work as an emergency spare, maybe for a few months, but it'll blow well within the life of a 3W bulb.
IME the Shimano smart switch stops this happening.
If you're not running a tail-light it won't be a huge amount of time before you blow it. It'll work as an emergency spare, maybe for a few months, but it'll blow well within the life of a 3W bulb.
IME the Shimano smart switch stops this happening.
IME it stops this by cutting out every 10 seconds or so, so do the follwoing three replacements even though the wiring harness works fine for 12 months without any switch and without blowing bulbs[1]. Eventually you start using the sw-nx10 that the shop sent you by mistake one time and this works fine. OTOH the sw-nx30 you got for your mum works fine
ymmv james [1] ok the 2.4w bulb has gone now after some 18 months
I refer the hon. gentleman to Message-ID: <[email hidden]>
"The Shimano NX32 6V 3W Dynohub with Mavic Rim look nice."
Can the Nexus hub be had without the smart switch? I don't know.
Dunno, though OTOH I did suggest he went with the Ultegra or XT that represent Shimano's next generation of hubs from the older Nexus (unless they've reintroduced a new Nexus this year, in which case I'm behind the times and My Bad), and which Darth Ben reckons are a fair bit better than the Nexus for minimal extra cash.
DH-3N70 is the 32 hole model AFAICT. No mention of Smart Switch on Ben's pages, not that that means there isn't such gubbins built in.
Pete. -- Peter Clinch Medical Physics IT Officer Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital Fax 44 1382 640177 Dundee DD1 9SY Scotland UK net [email hidden] http://www.dundee.ac.uk/~pjclinch/
All very well if you have a Shimano Smart Switch... but I don't!
The voltage limiting in the Shimano SW-NX30 is not much differnt from what happens inside the B&M headlamps: A double-zener diode. Both are not designed to run a 6V-2.4W bulb on a 6V-3W dynamo for extended time.
If the diode is damaged or lacks contact, bulbs are in danger. What kind of headlamp are you using?
Andreas - the ultimate solution is the E6 with true rms voltage limit
