Superflashes (and why 2 is always better than 1)
#1
12mph+ commuter
Thread Starter
Join Date: Aug 2008
Location: Oak Park, IL
Posts: 863
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Superflashes (and why 2 is always better than 1)
I went out for a little 10 mile joy ride tonight to break in the studs on my ice bike a bit more. It was about 4 degree F windchill, so nothing too cold. On dismounting at the end of the ride, I noticed one of my superflashes was dead. I normally keep the one of the seatpost steady, and the one on my rack flashing. Thankfully, I didn't have much to worry about since my other light was still blinking.
My question is: Is it worth the extra battery drain to go one steady and one blinkie? I normally carry extra batteries anyway, so if I noticed a light was out, I could replace the batteries. I heard that a solid light is better at perceiving depth, so that's why I started running one solid in the first place.
My question is: Is it worth the extra battery drain to go one steady and one blinkie? I normally carry extra batteries anyway, so if I noticed a light was out, I could replace the batteries. I heard that a solid light is better at perceiving depth, so that's why I started running one solid in the first place.
#2
Banned
I went out for a little 10 mile joy ride tonight to break in the studs on my ice bike a bit more. It was about 4 degree F windchill, so nothing too cold. On dismounting at the end of the ride, I noticed one of my superflashes was dead. I normally keep the one of the seatpost steady, and the one on my rack flashing. Thankfully, I didn't have much to worry about since my other light was still blinking.
My question is: Is it worth the extra battery drain to go one steady and one blinkie? I normally carry extra batteries anyway, so if I noticed a light was out, I could replace the batteries. I heard that a solid light is better at perceiving depth, so that's why I started running one solid in the first place.
My question is: Is it worth the extra battery drain to go one steady and one blinkie? I normally carry extra batteries anyway, so if I noticed a light was out, I could replace the batteries. I heard that a solid light is better at perceiving depth, so that's why I started running one solid in the first place.
__________________
Prisoner No. 979
Prisoner No. 979
Last edited by dynodonn; 12-04-08 at 12:15 AM.
#5
Team Fat Boy
Join Date: Feb 2008
Location: Seattle
Posts: 194
Bikes: Bridgestone MB3 Commuter, Surly Long Haul Trucker, and Custom Ti roadbike by High Ti Cycles
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I also keep my seatpost butt light solid while leaving the one on the rack blinking. I use rechargeable batteries so I just pull them every couple of days and toss them in the recharger when I get home.
#6
P7 Fanboy
Join Date: Jul 2008
Location: Crippled Burrick Inn
Posts: 338
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I think if you have a decent front light, there is no need for a solid rear light, since a driver can fix onto the flood from your front light.
#7
Banned
Join Date: Nov 2004
Posts: 10,082
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
I've had drivers tell me that it's hard to judge the distance of a blinking light.
As for your dead battery problem, just get some decent rechargeables (I prefer Eneloop) and charge them once a week.
As for your dead battery problem, just get some decent rechargeables (I prefer Eneloop) and charge them once a week.
#8
Infamous Member
Join Date: Sep 2005
Location: Ohio
Posts: 24,360
Bikes: Surly Big Dummy, Fuji World, 80ish Bianchi
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 4 Times
in
3 Posts
I usually run the PBSF on my seatpost/seatbag blinking and the one(s) on the rack/freeloader solid. In the summer when I ride the road or xcross bike to work and only have one rear light, I keep it on flash.
__________________
"Let us hope our weapons are never needed --but do not forget what the common people knew when they demanded the Bill of Rights: An armed citizenry is the first defense, the best defense, and the final defense against tyranny. If guns are outlawed, only the government will have guns. Only the police, the secret police, the military, the hired servants of our rulers. Only the government -- and a few outlaws. I intend to be among the outlaws" - Edward Abbey
"Let us hope our weapons are never needed --but do not forget what the common people knew when they demanded the Bill of Rights: An armed citizenry is the first defense, the best defense, and the final defense against tyranny. If guns are outlawed, only the government will have guns. Only the police, the secret police, the military, the hired servants of our rulers. Only the government -- and a few outlaws. I intend to be among the outlaws" - Edward Abbey
Last edited by chipcom; 12-04-08 at 06:18 AM.
#9
Senior Member
Join Date: Nov 2004
Location: Davis CA
Posts: 3,959
Bikes: Surly Cross-Check, '85 Giant road bike (unrecogizable fixed-gear conversion
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Likes: 0
Liked 4 Times
in
3 Posts
I set my brightest light on full power solid, and my other light on flash. The purpose of the solid is so that they see me. The flash is to get their attention and so they notice that I'm a bike and not going as fast as they are.
I use rechargeables and make sure they get refreshed every other day.
I use rechargeables and make sure they get refreshed every other day.
#10
An Army of Fred
Join Date: Dec 2007
Location: Lost South of Nowhere East of Edan On the Waterfront Far from the Madding Crowd (Biloxi, MS)
Posts: 1,003
Bikes: 1992 Specialized Crossroads Trail
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 3 Times
in
1 Post
Redundancy is good. Redundancy is good. Redundancy is good.
I have two PBSF on my bike and red reflective sheets on the back of my bucket panniers (about 100 sq. in. each). The only way motorists can't see me at night is if their name is either Ray Charles or Helen Keller.
I have two PBSF on my bike and red reflective sheets on the back of my bucket panniers (about 100 sq. in. each). The only way motorists can't see me at night is if their name is either Ray Charles or Helen Keller.
#11
Senior Member
Join Date: Mar 2006
Posts: 2,018
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
If you have a reflector on your bike the blinky only gives you a small improvement in visibility. If the driver does not see the reflector, it is not likely, but not impossible, that the blinky will catch their attention.
#12
For The Fun of It
Join Date: May 2007
Location: Louisissippi Coast
Posts: 5,852
Bikes: Lynskey GR300, Lynskey Backroad, Litespeed T6, Lynskey MT29, Burley Duet
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 2135 Post(s)
Liked 1,647 Times
in
829 Posts
I went out for a little 10 mile joy ride tonight to break in the studs on my ice bike a bit more. It was about 4 degree F windchill, so nothing too cold. On dismounting at the end of the ride, I noticed one of my superflashes was dead. I normally keep the one of the seatpost steady, and the one on my rack flashing. Thankfully, I didn't have much to worry about since my other light was still blinking.
My question is: Is it worth the extra battery drain to go one steady and one blinkie? I normally carry extra batteries anyway, so if I noticed a light was out, I could replace the batteries. I heard that a solid light is better at perceiving depth, so that's why I started running one solid in the first place.
My question is: Is it worth the extra battery drain to go one steady and one blinkie? I normally carry extra batteries anyway, so if I noticed a light was out, I could replace the batteries. I heard that a solid light is better at perceiving depth, so that's why I started running one solid in the first place.
#13
50000 Guatts of power
Join Date: Sep 2008
Posts: 1,001
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I set my brightest light on full power solid, and my other light on flash. The purpose of the solid is so that they see me. The flash is to get their attention and so they notice that I'm a bike and not going as fast as they are.
I use rechargeables and make sure they get refreshed every other day.
I use rechargeables and make sure they get refreshed every other day.
a bright solid light is easier to see, and judge speed and direction, vs a blinking light
a blinking light affords too many intervals when a driver behind is scanning ahead and will not
see you because of the dead space between blinks. a solid light will always be seen. 40% of
the time a blinking light won't been seen in the type of quick scanning drivers do until more
closing distance is gained.
solid always trumps blink
#14
L T X B O M P F A N S R
I've always thought that blinking jumps out more among a sea of red car tail lights. That's why I keep mine on blink. I'm willing to be convinced otherwise though.
#16
Been Around Awhile
Join Date: Oct 2004
Location: Burlington Iowa
Posts: 29,978
Bikes: Vaterland and Ragazzi
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked 1,538 Times
in
1,047 Posts
a blinking light affords too many intervals when a driver behind is scanning ahead and will not see you because of the dead space between blinks. a solid light will always be seen. 40% of the time a blinking light won't been seen in the type of quick scanning drivers do until more
closing distance is gained.
solid always trumps blink
closing distance is gained.
solid always trumps blink
Last edited by I-Like-To-Bike; 12-04-08 at 10:10 AM.
#17
For The Fun of It
Join Date: May 2007
Location: Louisissippi Coast
Posts: 5,852
Bikes: Lynskey GR300, Lynskey Backroad, Litespeed T6, Lynskey MT29, Burley Duet
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 2135 Post(s)
Liked 1,647 Times
in
829 Posts
I can't speak so much for the tail lights, but my experience with bright flashing LED headlights tells me they work. I take an occasional before sunrise ride out through the rural areas of the county. I use a beam and a seperate flashing LED. My partner uses a bright beam only. When he is riding up front, oncoming cars pass without any indication that they saw us. When I am up front, most cars slow noticeably as they approach. The difference in motorist behavior is pronounced. There is a pre sunrise group that rides near where I work. Their flashing LED taillights are very noticeable. I can't recall any depth perception issues. The lights do their job in that they let me know something is there that I don't want to hit. If there is a depth perception issue, it is irrelevant to me as I have already altered speed and/or path well before I get to a point where a small depth perception issue could cause a problem.
#18
Part-time epistemologist
Not really...in most cases the motor vehicle's lights will blot out any 'flood' from your front lights, from the driver's perspective. Get a tail light.
I usually run the PBSF on my seatpost/seatbag blinking and the one(s) on the rack/freeloader solid. In the summer when I ride the road or xcross bike to work and only have one rear light, I keep it on flash.
I usually run the PBSF on my seatpost/seatbag blinking and the one(s) on the rack/freeloader solid. In the summer when I ride the road or xcross bike to work and only have one rear light, I keep it on flash.
__________________
A narrative on bicycle driving.
A narrative on bicycle driving.
#19
Senior Member
Join Date: Oct 2008
Location: Aberdeen, Scotland
Posts: 482
Bikes: '07 Brompton S6L; '10 Brompton M6R
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Unless you have more than one solid light, it doesn't help any with depth perception. It's just a one-dimensional point of light - is it a bicycle, a distant motorbike, or a red-shifted star 100 light years away? No way of knowing. If it's blinking, it's a bicycle.
#20
Infamous Member
Join Date: Sep 2005
Location: Ohio
Posts: 24,360
Bikes: Surly Big Dummy, Fuji World, 80ish Bianchi
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 4 Times
in
3 Posts
Incorrect. Light must hit a reflector for it to reflect, the same is not true of a light. The improvement is as good as the light...I suspect you got wimpy blinkies.
__________________
"Let us hope our weapons are never needed --but do not forget what the common people knew when they demanded the Bill of Rights: An armed citizenry is the first defense, the best defense, and the final defense against tyranny. If guns are outlawed, only the government will have guns. Only the police, the secret police, the military, the hired servants of our rulers. Only the government -- and a few outlaws. I intend to be among the outlaws" - Edward Abbey
"Let us hope our weapons are never needed --but do not forget what the common people knew when they demanded the Bill of Rights: An armed citizenry is the first defense, the best defense, and the final defense against tyranny. If guns are outlawed, only the government will have guns. Only the police, the secret police, the military, the hired servants of our rulers. Only the government -- and a few outlaws. I intend to be among the outlaws" - Edward Abbey
#21
Infamous Member
Join Date: Sep 2005
Location: Ohio
Posts: 24,360
Bikes: Surly Big Dummy, Fuji World, 80ish Bianchi
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 4 Times
in
3 Posts
I've been doing testing, and what counts is beeing seen well in advance, far up the road
a bright solid light is easier to see, and judge speed and direction, vs a blinking light
a blinking light affords too many intervals when a driver behind is scanning ahead and will not
see you because of the dead space between blinks. a solid light will always be seen. 40% of
the time a blinking light won't been seen in the type of quick scanning drivers do until more
closing distance is gained.
solid always trumps blink
a bright solid light is easier to see, and judge speed and direction, vs a blinking light
a blinking light affords too many intervals when a driver behind is scanning ahead and will not
see you because of the dead space between blinks. a solid light will always be seen. 40% of
the time a blinking light won't been seen in the type of quick scanning drivers do until more
closing distance is gained.
solid always trumps blink
Riddle me this...what do you spot sooner on the highway...the taillights of other cars up the road, or the flashing emergency lights of a car up the road. By your logic, we shouldn't bother with flashing emergency lights
Blinking is better to get attention from a longer distance, solid is best as they get closer and must judge your speed and position.
__________________
"Let us hope our weapons are never needed --but do not forget what the common people knew when they demanded the Bill of Rights: An armed citizenry is the first defense, the best defense, and the final defense against tyranny. If guns are outlawed, only the government will have guns. Only the police, the secret police, the military, the hired servants of our rulers. Only the government -- and a few outlaws. I intend to be among the outlaws" - Edward Abbey
"Let us hope our weapons are never needed --but do not forget what the common people knew when they demanded the Bill of Rights: An armed citizenry is the first defense, the best defense, and the final defense against tyranny. If guns are outlawed, only the government will have guns. Only the police, the secret police, the military, the hired servants of our rulers. Only the government -- and a few outlaws. I intend to be among the outlaws" - Edward Abbey
#22
An Army of Fred
Join Date: Dec 2007
Location: Lost South of Nowhere East of Edan On the Waterfront Far from the Madding Crowd (Biloxi, MS)
Posts: 1,003
Bikes: 1992 Specialized Crossroads Trail
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 3 Times
in
1 Post
Don't forget, if the light (or reflector) isn't aimed towards the driver's line of vision, it's almost useless. That's why I always check my lights (front, rear, and my DLGs) to make sure they're aimed properly. Ya can't get their attention if you ain't aiming right.
#23
Cycle Year Round
Use at least 2 rear lights and remember that the cold will reduce the time the light will work (unless you can keep the batteries warm somehow).
#24
50000 Guatts of power
Join Date: Sep 2008
Posts: 1,001
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
to mankind, and also my own lights placed some distance down the road and me driving out back and forth and doing an actual study.
[my eyes are better than average btw...it isn't a vision problem with me.]
first off- bright is always good. bright blink is ok. weak blink sucks. weak solid sucks.
bright blink is hard to judge position and speed. bright solid is extremely easy to judge distance and
speed.
in a sea of traffic a blink stands out less than solid imho...if you are in a sea of traffic
then you just look out for yourself. the most ideal situation for a bike tail light is alone on
a long dark road with fast traffic. you def want bright solid for the best visibility.
anyhow I run a dinotte 140l on medium solid all the time every time I plan on riding road
at night it is without a doubt the best taillight for the combo of size, ease of use,
and visibility whether dodging idiots in the northend at 12:30am on a friday night or
climbing dark twisty narrow streets
Last edited by 127.0.0.1; 12-04-08 at 03:16 PM.
#25
Infamous Member
Join Date: Sep 2005
Location: Ohio
Posts: 24,360
Bikes: Surly Big Dummy, Fuji World, 80ish Bianchi
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 4 Times
in
3 Posts
I just use the Lithium Energizers in my blinkies...they last much better in the winter. So how cold is it in Honolulu today?
__________________
"Let us hope our weapons are never needed --but do not forget what the common people knew when they demanded the Bill of Rights: An armed citizenry is the first defense, the best defense, and the final defense against tyranny. If guns are outlawed, only the government will have guns. Only the police, the secret police, the military, the hired servants of our rulers. Only the government -- and a few outlaws. I intend to be among the outlaws" - Edward Abbey
"Let us hope our weapons are never needed --but do not forget what the common people knew when they demanded the Bill of Rights: An armed citizenry is the first defense, the best defense, and the final defense against tyranny. If guns are outlawed, only the government will have guns. Only the police, the secret police, the military, the hired servants of our rulers. Only the government -- and a few outlaws. I intend to be among the outlaws" - Edward Abbey