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Old 09-22-13, 04:02 PM   #1
ScottRae
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hurt my eyes

I have a good bright light, but the other day, yes it was day time. Someone coming toward me on a road bike had a headlight that was so bright it hurt my eyes to look at it. I want one. Any ideas what it might have been? And no I don't have sensitive eyes.
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Old 09-22-13, 04:22 PM   #2
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Could be any number of lights. It might be easier if you stated what your "good bright light" is and we can go from there.
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Old 09-23-13, 06:23 AM   #3
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No way to tell, there are at least dozens of "really bright" lights. I run a $30 ebay "1600 lumen" (about 900 lumens in reality) headlight with a wide angle diffuser lens, and run it on strobe during the daytime.

The only way to know for sure is to catch the guy and ask him.
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Old 09-23-13, 07:46 AM   #4
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I get a lot of, "Ow! My eyes!" and "I'm going to have a seizure!" from my Nite Rider 1800 lumen lamp mounted on my helmet combined with a Cygolite 740 lumen on the bars.
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Old 09-23-13, 08:49 AM   #5
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I have a good bright light, but the other day, yes it was day time. Someone coming toward me on a road bike had a headlight that was so bright it hurt my eyes to look at it. I want one. Any ideas what it might have been? And no I don't have sensitive eyes.
Mostly all bright lights will be uncomfortable, such as bright lights on cars. The thing to do, is not to look directly at them. Any light 300 lums or higher will be pretty bright to look at directly.
If you want one, just look for something over 500 lums... right now, I am pushing twin lights up front that are rated at 1300 lums each.. I said rated.. .. BTW, nobody can look at those either!!
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Old 09-23-13, 08:52 AM   #6
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I get a lot of, "Ow! My eyes!" and "I'm going to have a seizure!" from my Nite Rider 1800 lumen lamp mounted on my helmet combined with a Cygolite 740 lumen on the bars.
Sounds like you got a winner there!!

I am running torches on my helmet.. Would like to run something like what you have.. Picture of your setup would be nice..

One thing for sure, you are seen out there, and they know you are coming, IMO, that is a good, good safe thing...
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Old 10-13-13, 10:42 AM   #7
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Sounds like you got a winner there!!

I am running torches on my helmet.. Would like to run something like what you have.. Picture of your setup would be nice..

One thing for sure, you are seen out there, and they know you are coming, IMO, that is a good, good safe thing...
I think it's safe unless they try to shoot at the nasty bright things.
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Old 10-14-13, 11:36 PM   #8
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I have a light that burns the retinas of all who dare gaze upon me.....


For $40 bucks, you can get a light that is as bright as a MagicShine (costs 3x as much). I originally just had the MagicShine, but needed another light for my helmet while mountain biking. I got this:

http://dx.com/p/zxc-01-cree-xm-l-t6-...x-18650-166560

It's pretty amazing and hasn't failed me once. I now use it for my training rides after work and it definitely blinds the **** out of people.
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Old 10-15-13, 03:01 PM   #9
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About 10 years ago during a 24-hour race, a guy about a quarter mile behind me had lights (3 or 4 bulbs) so bright that I could see my shadow! Cars coming the other direction were flashing their high beams in an attempt to get him to dim his lights. I don't remember the brand, but he had HID lights and had to swap out a rather massive battery pack about every 28 miles or about an hour and a half. I followed him at an appropriate distance as his lights were so much better than my pathetic light.
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Old 10-22-13, 04:01 PM   #10
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I for one have a problem with the mantra of "I must have the brightest light possible." I commute on a MUP and have been blinded several times by bikes coming the opposite way and the way the MUP twists and turns, I worry that I will miss a turn one day because of some obnoxiously bright light. I have a Philips Saferide 80 and its optics cutoff the light above a certain angle, and the light is more than bright enough for me.

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Old 10-24-13, 07:26 AM   #11
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Yeah, I'm not sure I understand the logic of wanting to temporarily blind someone who's coming towards you while in control of a 2,000 lb. vehicle.

i drive a car too, and every once in a while I encounter a cyclist with a light so bright that I have to avert my eyes until they've gone by. That really doesn't seem good. I hope I'm not doing that to drivers when I'm on my bike.

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Old 10-24-13, 03:16 PM   #12
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In America, the attitude is "more is better" which has escalated to "even more is even better." I'm starting to get ticked off by this on my bike route. First, people are using lights brighter than they need, which wouldn't be so bad if they aimed them considerately. The beams that are pointed straight and flash are the worst for me.
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Old 04-16-14, 06:51 PM   #13
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I see a real problem with having the best/brightest headlight(s) as eventually becoming a problem ( especially for us bicyclists ). If enough motorists begin complaining about bikers whose headlights blind them to the point they can't see down the road ( and perhaps cause an accident ), I'd bet the police would begin stopping and ticketing bikers who don't have their headlight(s) aimed correctly to prevent blinding opposing motorists. And what if your own bright light(s) blind a motorist coming towards you, and they cross the center of the road and severely injure or even kill you. Nothing gained there! We expect motorists to respect us bikers, but if we do some things to "thumb our noses" at the motoring public, we lose the ground we've gained the past 10 years. When you have a motor vehicle versus bicycle situation, the motor vehicle will win every time. Sufficient light for your needs/road conditions, a well aimed light pattern and respect for others on the road ( vehicles and bicycles ), will help everyone.
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Old 04-17-14, 09:58 AM   #14
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If the end game is that the US enacts laws requiring bike lights to be properly designed - full cutoff, etc, and we start getting good lighting designs, then even the more is better thing might work out in the end.
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Old 04-17-14, 12:27 PM   #15
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If the end game is that the US enacts laws requiring bike lights to be properly designed - full cutoff, etc, and we start getting good lighting designs, then even the more is better thing might work out in the end.
I'd like a dual beam with a dimmer button on my bars. Too bad it's illegal in Germany or we'd already have it. I run a blinky aimed at car driver's eye height night and day. At night I shut it off on the MUP and let my shaped beam light up the ground/path.
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Old 04-17-14, 01:15 PM   #16
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I see a real problem with having the best/brightest headlight(s) as eventually becoming a problem ( especially for us bicyclists ). If enough motorists begin complaining about bikers whose headlights blind them to the point they can't see down the road ( and perhaps cause an accident ), I'd bet the police would begin stopping and ticketing bikers who don't have their headlight(s) aimed correctly to prevent blinding opposing motorists. And what if your own bright light(s) blind a motorist coming towards you, and they cross the center of the road and severely injure or even kill you. Nothing gained there! We expect motorists to respect us bikers, but if we do some things to "thumb our noses" at the motoring public, we lose the ground we've gained the past 10 years. When you have a motor vehicle versus bicycle situation, the motor vehicle will win every time. Sufficient light for your needs/road conditions, a well aimed light pattern and respect for others on the road ( vehicles and bicycles ), will help everyone.
I believe context is everything with bicycle lighting -- even in a commuter situation.

In NW Ohio you have (usually) different challenges than I would encounter here in San Francisco. The high-speed, texting teenager on a suburban road with no bike lane seems to be your most likely risk, whereas mine is a mixture of over-stimulated rushing cars/trucks/buses/cyclists/pedestrians, most of which are being texted or are texting and/or are pulling out of a driveway/opening a car door into me.

In NW Ohio, I would fear most being rear-ended by a distracted driver going 50+ mph (REAR lights would be my emphasis). You have some NICE long, flat, straight cycling roads, but people drive FAST and cyclists are few and far between.

In SF, my biggest fear is the dreaded "right hook" (where lighting may not matter) and the SMIDSY left turn across my path at an intersection (most of the deaths here are due to these two, from what I read in the news). I think a super bright blinking or pulsing taillight may be the best hope in the former, and blinking or pulsing BRIGHT headlight may be the best defense for the latter).

I wish there were some solid research on this -- I love the idea of well-designed, but BRIGHT headlight beams for bicycles. In the end, a German approach for the "seeing" lamp for night-time PLUS a bright-enough-to-alert-without-blinding (for both day and night) is the approach I would prefer.
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Old 04-17-14, 04:08 PM   #17
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I have a bag full of these at my house - Amazon.com: 4 Mode 1200 Lumen CREE XML T6 Bulb LED Bicycle bike HeadLight Lamp Flashlight Light Headlamp: Sports & Outdoors

for about $15, they're 99% as good as the $80 magicshine I also have and although they're rated at 1600 lumens, that must be some unattainable theoretical number. Regardless, they're plenty bright and I don't have any qualms about using them in blinky mode while riding around on streets. They're not going to blind anybody during the day but they will get their attention and prevent (hopefully) a right or left hook.

People using blinky lights on a MUP need their heads examined anyway.
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