Bicycles Stack Exchange
Bicycles Stack Exchange

Questions tagged [headlights]

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.

87 questions
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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 hinder any other road users with how bright it is. Car…
Ben
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What is the best charging practice for my bike light's lithium ion battery?

I have a Light and Motion Seca 700 with a Lithium Ion battery. It has a multi-chem smart charger. I have heard that some batteries like NiMH have "memory" and should be mostly drained before recharging, while a LiIon battery is not supposed to…
Bizee Biker
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7
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5 answers

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 brighter are rated in lumens, rather than lux. I'm a…
Philip Kendall
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6
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4 answers

How can I attach Harbor Freight blue puck lights to mountain bike for front lights?

I have several of the free Harbor Freight blue puck lights - very bright. Any ideas how to attach to old 1st generation Specialized Hard Rock mountain bike ? I have one on now with reusable straps right but that's not going to work, will come off…
House DiY
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6
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4 answers

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 that by its own doesn't justify the price…
Giannis
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3 answers

Do rotational-symmetric-looking front lights usually throw half their light into oncoming traffic? How To dinstiguish?

Many front lights look rotational symmetric, also pretty powerful ones (>500 lumen). Is that usually the case? Or are there many that only look like that, but are still constructed to produce a good beam (powerful, illuminate the road well, not…
chichak
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4
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Is this a bike light and how do I turn it on? (I know it sounds stupid)

I've been doing a lot more cycling in the last year since moving to a new town and have really enjoyed it. I had a fairly crappy bike though and went to a secondhand store quite far away to get a good bike at a nice price. One big issues is there…
JustWantToTurnOnALight
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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 having the indication of "4 lux" on the package. See…
L.Dutch
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2
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How can I use my small flashlight as my bicycle's headlight?

How safely add my small flashlight to my foldable bicycle temporarily? I want use it as headlight. But I need take it off when I don't bike. My folding bicycle doesn't have basket, and I don't want add basket. Because COVID19, I don't want spend…
user52454
2
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1 answer

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 variation of a NiCad battery, not lithium. The battery…
Gary.Ray
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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 bracket and the fork crown. Or would it weaken the…
mika
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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
dinosaur
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How can I get a detachable bike light (300+ lumen) that runs off of AA or AAA NiMh batteries?

I have a large supply of NiMh rechargeable batteries that I use for all my gadgets. I have several small very bright LED flashlights that use these. My question is how can I construct, from parts, a strong bike headlamp that uses such batteries?…
user42036