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This tag is about forward facing lights on the front of a bike: on the handle bars; fixed to the front of the frame; on the forks and so on. It is not about lights worn around the head or on a helmet, but clearly the two cases are complimentary.

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2answers
105 views

How to tell if this light's bulb is blown? And what kind of light is it?

See photo. Is this a normal LED? I'm trying to troubleshoot it and can't tell if the bulb\diode is fine.
2
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2answers
142 views

Front light that “pulses”

I'm planning to start using my bicycle again for commuting and need to get a new front light (I'm in Australia, so it's dark early in the evenings at the moment). I've seen a few in use by other ...
1
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2answers
136 views

Is it legal for cyclists to use amber bike flashers for visibility (in BC, Canada)?

Amber bike lights can improve daytime visibility. This makes sense because white light looks similar to sunlight and amber light stands out more clearly. Being seen sooner means that drivers have more ...
2
votes
1answer
141 views

Longer pivot bolt for the front road brake?

On a roadbike, I want to mount dynamo front light on the brake pivot bolt bracket (because my handlebar is occupied with gadgets, and because I want to use the handlebar bag which obstructs the light)....
2
votes
2answers
949 views

What is the process of adding a light to a Yamaha PW equipped ebike?

I recently got a bike with a Yamaha PW system. The bike computer has a light on/off button but the bike itself has no light and I want to add one. How do I do this? From what I understand, I need a ...
2
votes
1answer
175 views

Dynamo light without rear light connected?

I wish to repair a faulty dynamo light system however I am a complete newcomer to these systems. I bought an old bicycle with a bottle dynamo ("Vitalux C 6V") connected to the rear wheel. There is a ...
1
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2answers
190 views

Is it safe to attach a flashlight to a helmet?

Everything I've found online discussing this has focused on the benefits and dangers of attaching a metal mount to the helmet, on which a flashlight would be attached. I'm using a soft mount (...
0
votes
1answer
123 views

Bicycle Headlights for Commuting. Can't Decide [closed]

I'm in the market for my first bicycle headlights, mainly for commuting 10 miles to/from work. The days are getting shorter and I foresee my entire commute will be in the dark in the coming months. ...
0
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2answers
99 views

Single switch light system?

Is there a headlight/taillight system that can be turned on with one switch, rather than turning on 2-4 lights each individually?
3
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1answer
193 views

Are there dynamo powered front flashing lights?

I have a bright battery powered front light and I'm looking for a flashing "be seen" front light that's connected to a dynamo so it's always on whenever I ride. Standlight would be ideal, but isn't ...
5
votes
1answer
213 views

Dynamo bike lights - unknown short circuit cause

I've bought and installed dynamo powered lights on my bike. A little bit about the setup - It's the bottle dynamo kind pressing against the tire system. The Dynamo produces current turning clockwise ...
1
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2answers
79 views

Diagnosing faulty circuit in vintage incandescent headlamp

I've got a steel-framed bike with incandescent lights, probably from the '70s. Unfortunately, despite all my efforts to get it working, the headlamp refuses to work. History About six months ago, ...
3
votes
1answer
141 views

Fork light mount on road brake pivot bolt - safe?

Is it safe to put the front light mount designed for the fork (as pictured below) on the road brake pivot bolt? I know I'd need a longer recessed nut. What makes me worry is that the steel wire loop ...
2
votes
2answers
983 views

I need an StVZO compliant bike light. Any recommendations?

I tried to buy one from Amazon but after testing it today the beam is clearly symmetrical and has no advantages over a normal bike light. I live in the UK so the StVZO regulation is not one which I ...
5
votes
1answer
252 views

Light brightness indication

Due to some issues with my dynamo I am also checking the possibility of installing batteries powered lights. While checking in a shop, together with the usual LED stuff, I noticed a front light ...
4
votes
3answers
141 views

handlebar light (or mount) with ball and socket joint

Is there a handlebar light or mount that uses a ball and socket joint or otherwise allows complete freedom to change where it points? I like to adjust my light depending on a # of factors. For example,...
3
votes
3answers
287 views

Conceptual: Bike Lights built into Grips

I am a design student and avid cyclist and am currently working on a design project for school. I had an idea for locking handlebar grips that have LED lights built into them. If you can picture MTB ...
2
votes
0answers
129 views

Magicshine MJ-872 disassembly

My light doesn't seem to work well, after 15 minutes of work it starts to switch to lower settings and shutting down. My guess is that I need to add the thermal paste that might be quite old (3+ years)...
10
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2answers
4k views

Red light facing forwards?

I was criticized for having a blinking red light facing forwards on my handlebars (in addition to a White headlight). What is wrong with this? It was nighttime in Manhattan. Isn't more always better ...
0
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2answers
203 views

What is the difference between Light and Motion's Urban 800 Chainbreaker and Urban 800 Anchor Steam bike lights?

The only difference I can see is the color, but their website lists them as separate products. http://www.lightandmotion.com/choose-your-light/urban
3
votes
2answers
619 views

My Serfas USL-5 raider usb headlight failed after rain, should I attempt user service?

I own a Serfas USL-5 raider usb headlight. This failed after very heavy rain, the blue charge light lights, but the switch won't produce light? What should I do.
2
votes
4answers
873 views

Cheap import lights VS branded lights

There are a lot of blog posts about cheap import lights (like SolarStorm etc) and how they perform. What is not clear to me is why they are so cheap. I know their battery packs are low quality, but ...
1
vote
1answer
75 views

broken hub dynamo lights 80s Triumph

Trying to fix up my 80s Triumph bike which has a Sturmey Archer 3 speed dynamo hub. The hub has two screws which connect to two cables. I think the hub generates an AC supply and powers a front and ...
16
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6answers
6k views

Protecting bike attachments such as lights against theft

I was wondering what one could do to keep his bike attachments from being stolen. On Monday two lights were stolen off of my bike. I only had them for a day. It was the kind that has a rubber "strap" ...
9
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6answers
928 views

Pedal-powered head/tail lights

I'm planning to get a pair of pedal-powered head & tail lights to get my husband as a gift. He commutes ~11mi roundtrip every day to/from work. In summer, he rides a Cannondale touring bike. In ...
0
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1answer
529 views

What to look for in a (Cheap) MTB headlight for night trail riding [closed]

I'm wondering what to aspects to look for when buying a mountain bike headlight is for night riding on the trails. I have never bought one before, but I'm hoping to spend at most $50, is it possible ...
1
vote
2answers
98 views

How do I adjust Luxos IQ2 mount?

I'm trying to mount Luxos IQ2 onto the fork crown. There isn't quite enough space between the back of the light and front brake cable and I was wondering if I could add a spacer between IQ2 metal ...
4
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7answers
3k views

Is it possible to get a light that is too bright?

This question is related to this recent question: Best ways to avoid getting hit by cars? I have a 750 lumens front head light - it's bright! Some of my riding buddies say it is too bright for the ...
7
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1answer
2k views

Bottle dynamo wiring a headlight and taillight on 1980s bike

I'm restoring a 1980 DBS Winner bicycle, and I'm having trouble wiring the dynamo to the headlight and taillight. As a disclaimer, I know very little about electricity and wiring. The dynamo has two ...
0
votes
2answers
1k views

Mounting a dynamo headlight to a front rack

I'm using B&M dynamo powered front light (an Eyc and a Cyo) on two of our bikes and currently have them mounted at the fork crown using the stock mounting brackets. This causes a large shadow from ...
8
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4answers
4k views

Bike lights with beam cut-off to avoid dazzling drivers?

Are there any bike headlights available that have a cut-off similar to a car's low beams, designed to avoid glare for other drivers? I am using the Light in Motion Urban 400 and while it's plenty ...
5
votes
5answers
4k views

Is there any rule of thumb for comparing lights rated in lux and lumens?

Currently, I'm using a front light rated at 35 lux on my bike. This is just about bright enough for my riding, but I'd like something a bit brighter. However, most of the lights which might be ...
1
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5answers
2k views

How much light is enough for year round commuting?

I used a Cateye Single Shot for 5 years until it died. Now I use a Cateye Single Shot Plus that I picked up on Ebay for $50. It's noticeably brighter than the Single Shot, but with my new commute I'm ...
1
vote
1answer
527 views

Cygolite Expilion Battery Replacement

Did anyone take apart the replaceable battery of the Expilion headlight? I assume it contains a 18650 like battery, but some have a protection circuit built in and some not. Any knowledge about the ...
4
votes
4answers
642 views

Is this a good bike light? And should I give these people my money?

I was was checking out this bike light. It looks good enough for me. I (rarely) get lost on trails around dusk, but more importantly I commute - a lot by bike. I really just want to be seen. What ...
5
votes
3answers
927 views

Helmets with dedicated mounting system for lights, cameras etc.?

I have came to the conclusion, that headlights work much better for me for cycling than handlebar-mounted lights. This is because: A headlamp illuminates where one is looking, not where the bike is ...
11
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2answers
3k views

Correct angle for front light?

I have recently invested in an LED front lamp with a battery pack. The results are great, it's incredibly bright and I will feel much safer with it on my bike. However, I don't want to blind or ...
49
votes
3answers
4k views

Does a helmet-mounted light affect the safe functionality of the helmet?

I am currently testing a bunch of lights for my (slowly) upcoming head lights review. Several of the lights can be mounted to a helmet using a mounting strap, like this: I'm wondering if having a ...
2
votes
3answers
616 views

Bicycle lights- Indicating in the dark

I am a product designer and am currently working on a bicycle lighting project and would really appreciate your valuable feedback. In England, turning left on a bicycle is not really a problem as ...
14
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9answers
11k views

Where to mount a headlight if the handlebar is obscured by a basket

I have a permanently mounted basket in front of the handlebars (because I have a child seat on the rack in the back). I also have a headlight on the handlebars (this one, if anyone cares). If the ...
6
votes
7answers
4k views

Recommendations for bike headlight…possibly running on AA batteries? [closed]

I realise this question has been asked before, but as far as I can tell the last time was over a year ago, so I thought it might be worth asking again in the light maybe of newer products being on the ...
3
votes
2answers
700 views

voltage of lighting system

I had a B&M ? brand (german make) rear bike 'standlight', removed the capacitor as I found it annoying when switching to a battery. Used a 6x cell AA 1,2v pack for awhile, with no issue. Upgraded ...
6
votes
2answers
580 views

Is a headlight required to emit light to the sides?

The California Vehicle Code says: (d) A bicycle operated during darkness upon a highway, a sidewalk where bicycle operation is not prohibited by the local jurisdiction, or a bikeway, as defined ...
11
votes
2answers
3k views

Are there any high power bicycle generators?

I have been searching for a generator or 'dynamo' (preferably one built into the hub) to run lights for night riding, but it seems that most are rated for only about 3W (presumably to meet German ...
5
votes
2answers
1k views

Are there LED based dynamo powered lights suitable for night time MTB riding on singletrack?

Are there LED based dynamo powered lights suitable for night time MTB riding on singletrack? Likely they would need to have: High Brightness, likely 500 lumens or better. Not sure how that translates ...
2
votes
6answers
2k views

Can you recommend a fixed LED headlight for a bike with a hub dynamo?

I have a Batavus Dutch bike for local commuting with a Shimano DH-2R30E 6 volt, 2.4 watt hub dynamo driving a halogen bulb headlight. The light provided is not very bright and I would like to know if ...
2
votes
3answers
1k views

Flickering light, Lumotec IQ Fly Senso Plus with SON hub-generator

Halfway through my third winter my Lumotec IQ Fly Senso Plus (powered by a SON hub-generator) headlight has suddenly started fluctuating, after I returned from Christmas holidays. While riding in the ...
1
vote
1answer
480 views

Can a headlight battery be reconditioned if it won't hold a charge?

I have an older CygoLite headlight that I used for commuting for a couple years. It's been in storage for about 12 months, and now it seems like the battery won't take a charge. I think its a ...
14
votes
4answers
2k views

Are revolights a good idea?

I've recently seen this: http://www.kickstarter.com/projects/revolights/revolights-join-the-revolution?ref=spotlight Basically it's leds on the wheel + a timing mechanism + persistence of vision ...
2
votes
3answers
3k views

Where can I find a bulb for my vintage 70's generator light?

I currently own a 60's/70's vintage light for my bike. I have it attached to my Trek 820 series 26" mountain bike at the moment. The light worked perfectly fine until one day when I broke the bulb ...