http://www.bikebiz.com/index.php/news/read/exposure-unveils-new-led-technology-for-2012-range/011735
CityCyclingEdinburgh Forum » Stuff
new LED technology for 2012 lights
(13 posts)-
Posted 13 years ago #
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The parts for my new light have been dispatched from honkers, My new light will finally end the roseburn path light wars....
Posted 13 years ago # -
@ steveo
do you make your own lights?
much knowledge required?Posted 13 years ago # -
Nah not really a bit of soldering, a bit of electrical knowledge and some basic diy skills to make a body. Tricky bit is usually picking a lens.
This is the body i've got in mind for this years set:http://bikeled.org/ConstructionSteps.html
Emitters and drivers come from deal extreme. There are only really a couple of each to choose from when you boil it all down.
I did an instructable a few years ago on making my simple commuting light.
Posted 13 years ago # -
cool
I had wondered if folks made their own as the off the shelf units seem a bit pricey for what they arePosted 13 years ago # -
wonder if i could upgrade my old cateyes
they were the twin light halogen units with separate batteries
maybe a bit small?Posted 13 years ago # -
accelorometer controlled rear light anyone?
Posted 13 years ago # -
accelorometer controlled rear light anyone?
B&M already make one. It also has an LDR. It turns on when it's dark and moving. I've got one on the Pashley.
Posted 13 years ago # -
shoulda asked this while I was still in germany and picked up some cheap ones
Posted 13 years ago # -
@Steveo, where do you get your reflectors/lenses? Is there somewhere europe/uk? The suppliers listed in the diyled site seem to want to charge 30 or 40 dollars to ship a 3 dollar part!
Posted 13 years ago # -
Heard from some readers that City Light has installed those new LED (light-emitting diode) streetlights in parts of Fremont. They cast an immediately noticeable brighter, whiter glow. led outdoor lighting fixtures It’s all part of a citywide upgrade to LEDs that began this summer. A July 2010 press release about the new streetlights explained their expected benefits: led strip lights “We are entering a new era in street lighting,” Superintendent Jorge Carrasco said. “LEDs use 40 percent less energy and last three times longer than the high-pressure sodium lights that have been the standard for the past 30 years. That means better reliability, less maintenance, a longer life cycle, and lower operating costs for our customers 12v led light bars
Posted 12 years ago # -
“LEDs use 40 percent less energy..
Well, maybe. But only if you are prepared to have less light too.
Sodium and high pressure sodium (traditional street lights) are in the 100 to 200lm/W efficiency range while LEDs are in the 50 to 150(hero experiment)lm/W range.
Having white-ish light may give the impression of brighter illumination though and maybe that's all that counts in the end.
Posted 12 years ago # -
I love that one of the spam links won't work because of URL fail... doh!
Posted 12 years ago #
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