Questions tagged [lighting]

Front, rear, and side lighting for your bike as well as helmet lights. Incandescent and LED lights. Dynamo hubs, rechargeable batteries, and step-down circuits from ebike batteries are also included as long as they result in the production of light.

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6 votes
2 answers
1k views

Where is the Shimano e-tube project light connection setting?

I'm trying to install some aftermarket hardwired lights to my eBike which is running a Shimano steps e5000 drive system (bike is a Reid urban+ ebike). I've verified that the lights work and are the ...
16 votes
6 answers
6k views

Legality and morality around wearing a red / blue flashing light on a bicycle in the UK?

I recently bought a red and blue flashing light to wear on my helmet when I cycle into work in London. I abide by road rules, cycle safely, never cycle on footpaths, obey stop signs and traffic lights ...
0 votes
2 answers
134 views

Why do my USB charging ports fail?

I've now had four USB rechargeable front bike lights fail due to the USB port. I plug in the USB micro cable and nothing happens. On one new Niterider light it worked only for a few days. On another, ...
8 votes
6 answers
4k views

Why do consumer battery powered LED lights fail mid ride

I've had consumer battery powered LED bicycle lights fail mid ride without the battery being at fault. This has been spread across brands, weather conditions, ride lengths. The most recent failure ...
31 votes
9 answers
10k views

Polite way to ride in the dark

Sometimes I ride in the park which has no light. There always are dog walkers, runners and other cyclists. So, when I ride towards someone I have two options: dim my light and slow down (since I can'...
3 votes
3 answers
2k views

Replacing a normal hub with a dynamo hub

I'm the owner of a Kona Sutra 2017. I'm pretty happy with this bike, but I'm looking to get a dynamo hub for it, with some lights and maybe a charger for my phone. So far I managed to figure out that ...
2 votes
3 answers
372 views

Why are there no/very-few bicycle-specific lights with replaceable 18650 Li-Ion batteries?

Most (higher end) battery-powered bicycle lights have built-in Li-Ion battery or a battery pack nowadays. There seem to be no front lights using replaceable 18650 cells. Rear lights with replaceable ...
13 votes
3 answers
4k views

Is my helmet/camera/light setup dangerous?

Do you think the mounted camera and light on the helmet is safe?
4 votes
5 answers
977 views

Can I get a bright rear light using AA batteries, or is there a compelling reason why nonreplaceable batteries are so widespread?

The short version: I like the convenience and the ecology of using rechargeable AA/AAA batteries in a rear light. Yet the rear lights using AA batteries I see on the market have puny power. Does ...
3 votes
2 answers
280 views

Which strategy of using the bicycle light should I select?

I use my bicycle for commuting, mostly over the secondary roads closed for the majority (not all) car traffic. There are other cyclists, dog walkers and runners on these roads. Using the light often, ...
1 vote
1 answer
158 views

Where are light connector terminals on an E-bike?

There are many various lights currently on the market that are marketed as "designed for E-bikes". They have external power connectors. Of course, the voltage must also match but I am not ...
-1 votes
1 answer
96 views

Can someone tell me what brand of bike light this is?

It is a USB chargeable light and supports a strobe mode as well as a few different brightness settings. Thanks very much!
11 votes
5 answers
3k views

Mounting the front light on the frame instead of the fork or the handlebar?

I've had my front light mounted on the handlebar for the last 4 years or so. I never liked the bulky look and more importantly, how it jumps around in a response to my handlebar movements (if I'm on a ...
7 votes
3 answers
5k views

Which front and rear lights can run while charging?

I have a 52V battery pack on my krampus, which I use for commuting to work. I plan on buying a DC-DC converter with two USB outputs to run headlight and taillight. So my requirements are mostly to ...
0 votes
1 answer
115 views

Damages to LED from accumulated snow?

On my bike the rear light is a LED integrated in the fender. The gap between the LED group and the tire is quite narrow. The make is the same as in the picture below. From the last time I cycled onto ...
4 votes
1 answer
236 views

How do you repair or lengthen a B&M Luxos Control Cable?

Maybe this would be better off in electronics, but since it's bike gear specific, I thought I'd try here first. I need to have longer control cables on B&M's Luxos U headlight/charger combo. This ...
1 vote
5 answers
952 views

How to choose the light bulbs for a given dynamo

I have a 16V 8W bottle dynamo and two light bulbs: one is marked 6V 0.05A and is working properly other does not have any inscription and ceased to work. I would like to replace the second light ...
1 vote
2 answers
4k 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 votes
2 answers
807 views

What gauge wire is used for dynamo hubs and lights?

I have some non-standard bikes to hook up so rather than ordering the kits with fixed length wires, I want to just order appropriate double strand (or coaxial) wire in bulk, along with the connectors, ...
0 votes
2 answers
94 views

Which bike light, aren't that to be seen kind enought? [closed]

I just bought a giant escape 2 and have been using it to go to work. When is time to come back home is already dark and I'm planning to get a light. Asked about one in nearby bike shop and they ...
26 votes
2 answers
6k views

Are Penny-Farthings Legal to Ride on Public Roads (UK)

Are Penny-Farthings legal to ride on public roads in the UK? Note: For laws regarding riding Penny-Farthings on public roads in other countries-ie "US" or "EU"- please start a new ...
53 votes
4 answers
7k 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 ...
1 vote
3 answers
179 views

Rear dynamo light (tail light) or reflector without rack?

I have a light / reflector designed to mount to a rear rack. It has two horizontal holes for bolts, like this: I do not have a rack. But I do have rack mounts like these on the seat stays: Is there ...
0 votes
1 answer
1k views

How reliable is the "smart" brake detection on a $20 tail light? [closed]

Here are some "smart" tail lights I found on Amazon: Having the same looks, prices, description grammar, no-name random "brand" names and sometimes even stock photos and videos, ...
2 votes
3 answers
372 views

Are there any light mounting products that is adjustable?

Let me try to explain my situation. We have three bikes. We probably have about 3 or 4 locations where we may leave the bike (home, work, parent's place etc.) We don't want to be carrying a light ...
8 votes
5 answers
5k views

Mounting light on handlebar with bag installed

On my bike I have installed an handlebar bag (the Ortlieb Ultimate 5). Since I am also considering installing lights on the handlebar, I am afraid they will be simply shielded by the bag. The clerk ...
4 votes
1 answer
196 views

Are dynamo hubs specific to particular lights?

I am looking to purchase a dynamo hub, such as those made by Shimano, Son, Exposure etc. and a set of lights to connect to it. What I want to know is if any dynamo light will work with any dynamo hub, ...
2 votes
1 answer
665 views

Can I use reflective tape instead of a rear reflector in the UK?

My road bike isn't fitted with a rear reflector as I got it second hand and I think they removed it. If I purchased some red reflective tape and fitted it around the seatpost/seatstay, would this make ...
0 votes
1 answer
599 views

AXA bottle dynamo noise

I'm looking for advice on AXA HR Traction bottle dynamos and others like it if there are any, as I have seen others on this forum discuss them specifically on other threads. My partner is running it ...
2 votes
4 answers
760 views

LASER bicycle lights

Is there any reason there are not yet LASER bicycle lights, given some cars already have them? It makes more sense in bicycles, has they have not a 12V bulky battery like a car, and are more energy ...
2 votes
0 answers
1k views

Color conventions for side (wheel) reflectors (yellow and white)

Spoke reflectors, as far as I know, often come in two colors: yellow and white. Is there a convention as to which one should go on the back wheel and which one should go on the front wheel? For ...
3 votes
4 answers
668 views

Preventing lamps being stolen / thieves' motivations

My bicycle's front lamp has been stolen AGAIN. I thus far have spent over 100 Eur on bicycle lamps that can be slid onto a mount on the bike, and more on rechargeable batteries for them. This needs to ...
8 votes
6 answers
927 views

Using an LED torch as a helmet light, will I blind oncoming drivers?

I'm planning on buying this LED Torch with this helmet mount. Could I blind oncoming drivers?
3 votes
3 answers
245 views

Mounting a 12v motorcycle light on bike seat rails?

So now that I built a 12 volt (more like 11v) battery for my bike I would like to accessorize it with some 12v lights to get a unique look. I'm looking at motorcycle tail lights, but they all have two ...
23 votes
4 answers
7k views

Does it make you safer to use lights during the day?

My bike light, the Cygolite Metro 360, has a "Daylighting" mode which flashes very brightly and is intended to be used during the day. Similarly, many tail lights have flashing modes. Obviously one ...
4 votes
1 answer
89 views

Rechargeable Bicycle Light Storage

For an expensive rechargeable bicycle light that is bright enough for daytime use, does it detract from charged state if left in a hot garage in the summer? In other words is it better to bring in ...
0 votes
1 answer
92 views

Lights for Rixen Kaul Klickfix shopper basket

I am looking for a solution to attach lights to my Rixen Kaul Klickfix shopper basket: Any suggestions? Would this clip work with the basket above?
10 votes
2 answers
5k views

Can I legally use front facing blue light in the UK?

I have a white front-facing light and a red light at the back. However, I was wondering if I could add the blue light at the front as well from a legal standpoint. Whether it is flashing or constant ...
112 votes
5 answers
34k views

Safety data: Which is safer, head/tail lights which blink or emit a steady beam?

My head and tail lights can be set to blink or emit a steady beam of light. I usually set my rear (red) light to blink, because I believe it makes me more visible at night. My friend argues that it ...
20 votes
6 answers
8k views

Should unconventional colors be avoided for lighting?

Red/amber lights in the rear of the vehicle, white lights, in front of it: that is the good old convention and certainly switching their places is a bad idea. A quick search, however, shows other ...
13 votes
5 answers
5k views

Using hub-dynamo for both lights and charging, with priority on lighting

I currently have a Supernova E3 Pro powered by a Shimano hub generator, and I would like to add the ability to charge USB-powered gadgets. My main concern, however, is that simply wiring up a charger ...
28 votes
8 answers
4k views

How to give away lights to cyclists without lights?

My objective is simple enough... I want people to be safe when out riding. Too often on my way to work I often see cyclists in the dark and rain without lights. When I see them I try and offer them ...
7 votes
3 answers
4k views

Why doesn't my (battery-powered) light work in the cold?

I've got a cheap LED lamp running on three AAA NiMH batteries which stops working when exposed to near-freezing temperatures; is there a likely reason for this? The lamp has been dropped a number of ...
2 votes
5 answers
2k views

Charging mobile phone using the battery of a rechargeable bike light?

Most rechargeable bike light are charged via USB port. I wonder if is it possible to use them as a power bank for your mobile phone as well? Or only a subset of them can be use as a mobile phone ...
4 votes
2 answers
158 views

Is there a route-planning tool that clearly indicates tunnels?

I'm planning a ride (Strava route) in the Alps, and I know there are some tunnels in the area. Coincidentally by taking the old road I'm planning to avoid the ones I know about. I'd like to have a ...
2 votes
2 answers
754 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 ...
14 votes
4 answers
3k 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 ...
3 votes
2 answers
608 views

AC dyno light on battery pack?

I'm running a Supernova E3 PRO 2 of my dynohub. However I would like to use my non-dynohub front-wheel whilst still being able to use the same lights on battery power. The lights have an internal AC/...
1 vote
2 answers
850 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 ...
10 votes
11 answers
8k views

Why are brake lights not common? [closed]

I spent a fair bit of time riding in the lane, in traffic. In this situation, it seems that a brake light would be very useful: It's not always obvious when the vehicle ahead of you is slowing down, ...