Blindingly bright rear light

Commuting, Day rides, Audax, Incidents, etc.
dalifnei
Posts: 159
Joined: 2 Sep 2012, 12:00am

Blindingly bright rear light

Postby dalifnei » 15 Nov 2013, 11:22pm

I was behind a bike tonight, and he had a blindingly bright rear light. I always thought it would be a good idea to have a very bright light (I currently have 4 fairly bright rear lights!) but being behind this super bright one was awful!

It was totally blinding, and worse impaired my vision. No chance of seeing the state of the road or all of the traffic. It forced me to drop right back.

I'm really surprised and will stick to what I have!!

thirdcrank
Posts: 28648
Joined: 9 Jan 2007, 2:44pm

Re: Blindingly bright rear light

Postby thirdcrank » 16 Nov 2013, 8:15am

I don't remember if you ever mentioned which bit of Scotland you hail from but we used to have an active member called Edinburgh Fixed. There's a bit of a debate on here between me and him about the benefits or otherwise of his home-made powerful rear lamp.

I was doing Grandad's taxi duty the other evening, and I ended up stuck in traffic behind a large teutonic exec auto with vast arrays of LED's on the back, which looked like original equipment. The driver was using the foot brake instead of the handbrake and the effect was very uncomfortable.

dazza500
Posts: 168
Joined: 1 Oct 2013, 3:17pm

Re: Blindingly bright rear light

Postby dazza500 » 16 Nov 2013, 8:35am

I've got a Cree T6 hesd torch and is far too bright for Road cycling.
Off road another matter it illuminates the path at least 400m in a very
Natural white light in front of me.

dazza500
Posts: 168
Joined: 1 Oct 2013, 3:17pm

Re: Blindingly bright rear light

Postby dazza500 » 16 Nov 2013, 8:36am

Its rated about 1800lumens but I think this is definitely on the conservative side!

User avatar
Cunobelin
Posts: 9538
Joined: 6 Feb 2007, 7:22pm

Re: Blindingly bright rear light

Postby Cunobelin » 16 Nov 2013, 9:39am

It is down to positioning, and unfortunately rear lights are not particularly flexible.

I use ultra bright rear lights (Dinotte 400 x 2) but they are angled down

I have taken an old piece of tube, and fitted to the rack using a set of brake washers. This allows me to angle the beam down and avoid ths issue

Other cyclists have commented on the brightness, but in a complimentary way

The brightest rear light available in the UK at the moment is (I think) the MagicShine

irc
Posts: 4569
Joined: 3 Dec 2008, 2:22pm
Location: glasgow

Re: Blindingly bright rear light

Postby irc » 16 Nov 2013, 10:02am

Past a certain point I think bright rear lights add nothing for safety and make it awkward for following cyclists. a pair of lights like the Cateye Ld600, LD610, or the Smart 1/2W lights etc are ample for being seen from a distance. I still see more cyclists without adequate lights though than overbright lights. Rucsac mounted lights pointing nowhere near direcly back are common along with barely visible lights perhaps from a combination of low battery (only one rear light used) and mud on the lense from not using mudguards.

dazza500
Posts: 168
Joined: 1 Oct 2013, 3:17pm

Re: Blindingly bright rear light

Postby dazza500 » 16 Nov 2013, 10:21am

I use a pound shop five led rear light. It is very bright in flashing mode but not bright enough to blind.
Highly recommended, very waterproof and only £1!

dazza500
Posts: 168
Joined: 1 Oct 2013, 3:17pm

Re: Blindingly bright rear light

Postby dazza500 » 16 Nov 2013, 10:21am

And three months out of a single set of AAA so far.

User avatar
meic
Posts: 19355
Joined: 1 Feb 2007, 9:37pm
Location: Caerfyrddin (Carmarthen)

Re: Blindingly bright rear light

Postby meic » 16 Nov 2013, 10:28am

The Poundland LED is bright, very bright and certainly adequate for the job.

However the things being talked about here like the Dinotte are many times brighter, often referred to as "weapons class" lighting and not much like what most people think of as a cycle light.
Yma o Hyd

Mistik-ka
Posts: 447
Joined: 5 Feb 2012, 10:01pm
Location: Saskatoon, Saskatchewan, Canada

Re: Blindingly bright rear light

Postby Mistik-ka » 16 Nov 2013, 5:27pm

I use a flashing Dinotte on roads — especially busy ones — that I share with motor vehicles during the day. I use a smaller blink-and-steady led taillight at night (if I must ride at night, though I prefer not to. On bike or shared paths I turn the Dinotte off. This question is quite sincere: is this an inconsiderate policy?

LondonBikeCommuter
Posts: 238
Joined: 21 Apr 2013, 4:10pm
Location: Swindon

Re: Blindingly bright rear light

Postby LondonBikeCommuter » 16 Nov 2013, 7:45pm

What in terms of lumens is 'too much' for a rear light? Am currently using an Exposure Blaze rated at 80 lumens.

Rob Archer
Posts: 273
Joined: 10 Apr 2007, 8:25pm
Location: King's Lynn, Norfolk

Re: Blindingly bright rear light

Postby Rob Archer » 16 Nov 2013, 7:58pm

I was giving serious consideration to getting one of these 'super-bright' rear lights recently. That is, until I rode the Dunwich Dynamo in July. Being stuck behind a couple of these for just a few minutes is extremely unpleasant and I tried to overtake or drop back as quickly as possible. They really do affect your night vision. The basic (probably a lot of them pound-shop jobs) were just as visible even at a distance.

I'll stick with my £10 Cateye (not sure what model it is. I've had it years.

irc
Posts: 4569
Joined: 3 Dec 2008, 2:22pm
Location: glasgow

Re: Blindingly bright rear light

Postby irc » 16 Nov 2013, 10:39pm

Mistik-ka wrote:I use a flashing Dinotte on roads — especially busy ones — that I share with motor vehicles during the day. I use a smaller blink-and-steady led taillight at night (if I must ride at night, though I prefer not to. On bike or shared paths I turn the Dinotte off. This question is quite sincere: is this an inconsiderate policy?


Sounds reasonable. Superbright for daytime sensiblebright at night.

sore thumb
Posts: 215
Joined: 7 Jan 2007, 10:27am

Re: Blindingly bright rear light

Postby sore thumb » 16 Nov 2013, 10:40pm

Exposure have made a new rear led light called tracer. Same power as the blaze but half the price. Same as old rear led they made but this one has a internal battery and the optics seem much better. Fantastic reliable light off the price.

dazza500
Posts: 168
Joined: 1 Oct 2013, 3:17pm

Re: Blindingly bright rear light

Postby dazza500 » 17 Nov 2013, 7:39pm

I stick with my pound shop light. It's easy bright enough and we v don't want to give
Professional cyclist bashers any more ammunition re over bright lights.