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Bicycle lighting
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Little John



Joined: 08 Mar 2008
Posts: 5667
Location: UK

PostPosted: Fri Nov 27, 2015 6:39 am    Post subject: Reply with quote

The modern ones have capacitors built into the dynamo lights to give a couple of minutes of light for when one is at a junction etc.
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PS_RalphW



Joined: 24 Nov 2005
Posts: 5267
Location: Cambridge

PostPosted: Fri Nov 27, 2015 8:41 am    Post subject: Reply with quote

My bike has a dynamo built into the front wheel hub. This provides good enough light for dark roads and has a 1 minute capacitor for when you stop cycling. However, I couldn't get the wiring to the rear light to work reliably and replaced it with an LED battery light.

I also have this

http://www.dutchbikebits.com/lights/battery-lights/philips-db800-activeride-headlight

which is almost a car headlight. I don't use it as it is unfair to other cyclists.
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Little John



Joined: 08 Mar 2008
Posts: 5667
Location: UK

PostPosted: Fri Nov 27, 2015 10:00 am    Post subject: Reply with quote

199 quid?!

I could rig that up with an off the shelf light of similar strength for less than twenty
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emordnilap



Joined: 05 Sep 2007
Posts: 13974
Location: Houǝsʇlʎ' ᴉʇ,s ɹǝɐllʎ uoʇ ʍoɹʇɥ ʇɥǝ ǝɟɟoɹʇ' pou,ʇ ǝʌǝu qoʇɥǝɹ˙

PostPosted: Fri Nov 27, 2015 11:45 am    Post subject: Reply with quote

cubes wrote:
You're going to need something better than a standard bike light to see anything on unlit roads. Just as you get dark adapted a car comes past and poof, back to square 1!


The HL-EL610RC I referred to is perfect for unlit roads (about half my daily commute). It's got an incredible beam - I've had complaints from a couple of car drivers when it's been pointed too high. Laughing
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emordnilap



Joined: 05 Sep 2007
Posts: 13974
Location: Houǝsʇlʎ' ᴉʇ,s ɹǝɐllʎ uoʇ ʍoɹʇɥ ʇɥǝ ǝɟɟoɹʇ' pou,ʇ ǝʌǝu qoʇɥǝɹ˙

PostPosted: Fri Nov 27, 2015 11:49 am    Post subject: Reply with quote

Little John wrote:
199 quid?!

I could rig that up with an off the shelf light of similar strength for less than twenty


I wouldn't doubt your skills for a moment.

With manufactured bike front lights, for the rest of us it's a case of more euro = more lumens.
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"Buddhists say we come back as animals and they refer to them as lesser beings. Well, animals aren’t lesser beings, they’re just like us. So I say fụck the Buddhists" - Bjork
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PS_RalphW



Joined: 24 Nov 2005
Posts: 5267
Location: Cambridge

PostPosted: Fri Nov 27, 2015 12:28 pm    Post subject: Reply with quote

It is overpriced. It is also reliable, has a huge LI Ion battery in it, very bright, but minimises glare by being entirely a reflected beam - the LEDs point straight down and are only visible via the reflective surface - so all the light is pointed downwards and forwards.

Also very heavy.
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cubes



Joined: 10 Jun 2008
Posts: 565
Location: Norfolk

PostPosted: Sun Nov 29, 2015 11:39 pm    Post subject: Reply with quote

emordnilap wrote:
cubes wrote:
You're going to need something better than a standard bike light to see anything on unlit roads. Just as you get dark adapted a car comes past and poof, back to square 1!


The HL-EL610RC I referred to is perfect for unlit roads (about half my daily commute). It's got an incredible beam - I've had complaints from a couple of car drivers when it's been pointed too high. Laughing


Nice! I'm happy I don't have to bike on unlit roads though, hard enough to be seen on well lit ones with decent lights and reflective clothing, especially when there are car drivers out there who's sole goal in life appears to be to kill you.
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