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Lighting and Electrical Things that go ZOT! Ignition components, batteries, lighting and accessories

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  #1  
Old 11-09-2012, 10:34 PM
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Location: Las Vegas, NV
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Default Brake Light?

After reviewing the Nevada statutes it seems I need a brake or "stop" light as they call it.

Apparently a fairly powerful one at that:

NRS 484D.125 Stop lamps
" (b) Display a red, amber or yellow light visible from a distance of not less than 300 feet to the rear in normal sunlight"

So is there something off the shelf you folks are using? Or am I going to have to build something new?

No other lights are required for daytime operation, but 2 mirrors of 7 square inches each are required.

Any suggestions?

B.
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  #2  
Old 11-09-2012, 11:29 PM
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Default Re: Brake Light?

I modified my brake levers to accommodate switches from Radio Shack.
Here is a link to the instructables I roughly followed to convert the levers:
http://www.instructables.com/id/Add-...e-brake-lever/

For the taillight I used a scrap motorcycle turn signal that uses a dual filament bulb.
I used a 6 volt LED bulb http://www.superbrightleds.com/morei...ty-19-led/508/

I made a 4 "D" cell battery holder for 6 volt output. It also powers my headlight too.
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  #3  
Old 11-09-2012, 11:55 PM
bigbutterbean bigbutterbean is offline
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Default Re: Brake Light?

Similar to gearnut, I also use an old motorcycle turn signal as a brake light, currently with an led bulb and 6v output, but soon upgrading to 7.2v.
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  #4  
Old 11-10-2012, 12:52 AM
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Default Re: Brake Light?

Try a kind of circuit placed on the V brake that is complete when the brake is squeezed. it's the principle behind my cheap-tacular Light 2000.
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  #5  
Old 11-10-2012, 01:02 AM
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Desert Rat Desert Rat is offline
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Talking Re: Brake Light?

Here is what I will be using, gives it that nice retro look
12 volt 10 watt

Last edited by Desert Rat; 11-12-2012 at 07:50 PM.
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  #6  
Old 11-10-2012, 03:43 AM
bigbutterbean bigbutterbean is offline
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Default Re: Brake Light?

I only had a second to post on this subject before, but I would like to take the time now to explain how my brake light is activated. It is a very simple setup, and didnt cost me very much at all. As I said before, I do have an old motorcycle turn signal. The body of the light is metal, and therefore grounded when bolted to my luggage rack. The light has one wire attached to it, and I connected this wire to the lead wire on my battery. I then attached a longer wire to the battery's ground wire, and ran the longer wire up to my clutch lever (I know this sounds a little strange, but I cant attach the wire to my actual brake lever). When the cheap allen bolt that is supposed to clamp my clutch lever got stripped out, I drilled a hole all the way through and used a quick release skewer with a partially broken release lever to clamp the clutch handle. So I attached the ground wire from the battery to the clutch lever so that when I squeeze the clutch lever all the way in, the end of the wire makes contact with the quick release skewer, grounding the battery to the frame and closing the circuit and thereby activating my brake light. I can still lock the clutch lever in place without the ground wire making contact with the frame. I know this may sound a bit complicated when reading it, but it is actually quite simple, and I hope it gives you an idea you can use.
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  #7  
Old 11-10-2012, 11:46 AM
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Default Re: Brake Light?

Thanks for all the replies guys.

It is clear that there is no single "go to" light for this with the motorized bicycle crowd. Looks like I am making more parts, this project keep complicating the simple...

I have a few Cree 2w red LED's kicking around, as well as some decent lenses. I guess I need to test a few on the sidewalk for that 300 foot range in the daytime.

Since I would like to ride this unit to work, I need to make sure it will stand up to at least casual inspection - I pass the main yard for the Highway Patrol every day. No sense blowing in to the anthill. At least in NV it is pretty clear what the rules are.

I am planning on a 4 stroke, so no "white wire", and I would rather not be jacking around with a lot of battery that needs a charge. I seem to spend an average of 8 minutes a day stopped according to my GPS, round trip to work.

That means about 15 days worth of brake lights from a single 18650 battery, so I would be swapping a charged battery every two weeks. I can live with that. Hopefully the Cree LED with a 30 degree lens is easy to see from 300 feet.

I will update when I know more.

Thanks.

B.
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  #8  
Old 11-10-2012, 02:35 PM
bigbutterbean bigbutterbean is offline
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Default Re: Brake Light?

I dont yet know how long a charge will last with my 7.2v brake light, but when I was running it 6v, I didnt change the batteries for months. In fact, I only changed the batteries once in about 6 months, and the batteries still worked before I changed them. I changed them anyway, because I didnt properly waterproof the battery pack, and it got wet. I knew that corrosion would be an issue eventually, so I took it apart, cleaned it, and installed fresh batteries. LED's do not draw much current to begin with, and a brake light is only on when you are stopping, so the batteries you use may just last you longer than you think. You said you spend 8 minutes a day stopped, but your brake light doesnt need to be on the entire time you are stopped, only WHILE you are coming to a stop. I dont think you will spend 8 minutes a day coming to a stop, unless you drive very far.
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  #9  
Old 08-15-2014, 12:35 PM
judbgrdmchn judbgrdmchn is offline
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Default Re: Brake Light?

Found this... http://2wheelride.com/bike%20brake%20light.html

Using it with a dual brake lever should pass inspection.
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  #10  
Old 12-04-2014, 04:06 PM
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redneck82 redneck82 is offline
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Default Re: Brake Light?

Quote:
Originally Posted by GearNut View Post
I modified my brake levers to accommodate switches from Radio Shack.
Here is a link to the instructables I roughly followed to convert the levers:
http://www.instructables.com/id/Add-...e-brake-lever/
GOOD FIND! i've been racking my brain for weeks on how i wanted to set this up and that sums it up how i want!
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