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New Type Of Light

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Old 01-01-18, 06:05 PM
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Colorado Kid
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New Type Of Light

Just saw this light and I was wondering if anyone has used it and what do you think of it, so far?https://www.treehugger.com/gadgets/t...-lighting.html
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Old 01-01-18, 07:28 PM
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Don Buska
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I think it depends on if you want lights to protect your during the daylight hours. I had a Reelight SL120 set on a bike and during the day, while under flash mode, the front white LED couldn't be seen by riders 20 feet in front of me and the rear red was visible but not to bright. Notice the ad video in your link only show operation at night or during darker conditions. That's always a warning sign for me as I mainly want daylight "attention' lights. My guess is these will be the same as my Reelight set. Most of these magneto style LED lights use relatively low power LED's. If you want to be noticed during the day look for rechargeable/battery LED lamps with 1W or higher LED's. Those can be set for steady illumination for night riding and in various strobe modes for day driving.

BTW, here is what I use now:

Front: 240 Lumen Q5 Cycling Bike Bicycle LED - You can find these on eBay out of China cheaper if your willing to wait for shipping.

Rear: PLANET BIKE SUPER FLASH TURBO LED 1 WATT LIGHT

And most recently a new rear (rechargeable): CygoLite Hotshot 50 lm USB Rechargeable Bicycle Tail Light

That front light can easily be loosened, removed and used as a flashlight when needed. Let's say something falls off your bike at night you can go look for it

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Old 01-01-18, 07:41 PM
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I hope more people sign up for the KickStarter campaign since at the moment it looks very unlikely to get funded - and I'd like to get the lights for which I signed up. But I agree with the above comment that these are low-power lights. I would view them as a redundant backup for my regular lights just in case there's a failure or I find myself out after dark unexpectedly and didn't mount and/or charge the primary lights.
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Old 01-01-18, 08:39 PM
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"especially if the generator doesn't add drag"
Hope they come through because a perpetuum mobile would solve many of mankind's problems. siemens or GE probably want to talk to them since all their generators add drag to the turbines....
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Old 01-01-18, 08:43 PM
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I am skeptical, also, whether these lights are bright enough, especially for daytime use. These days you can get 500+ lumen headlights for relatively cheap, and even 150 lumen tail lights are common, I doubt the Magic Light can measure up, both in price or brightness.
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Old 01-01-18, 09:34 PM
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Originally Posted by HerrKaLeun View Post
"especially if the generator doesn't add drag"
Hope they come through because a perpetuum mobile would solve many of mankind's problems. siemens or GE probably want to talk to them since all their generators add drag to the turbines....
The actual quote is "especially if the generator doesn't add drag by touching the wheel or tire itself." The KickStarter description indicates that the electromagnetic drag is about 0.3W/light, so no claim of perpetual motion.
Since the lights are in pairs, this much power (assuming high efficiency) combined with good LEDs could be enough for pretty bright rear lighting and 'be seen' front lighting. But not on par with the brighter conventional lights now available.
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Old 01-01-18, 11:42 PM
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Possible dirt on these lights?
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Old 01-02-18, 08:50 AM
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i think a dynamo hub is a better solution to the problem they are trying to solve personally.
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Old 01-02-18, 09:50 AM
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Originally Posted by prathmann View Post
The actual quote is "especially if the generator doesn't add drag by touching the wheel or tire itself." The KickStarter description indicates that the electromagnetic drag is about 0.3W/light, so no claim of perpetual motion.
Since the lights are in pairs, this much power (assuming high efficiency) combined with good LEDs could be enough for pretty bright rear lighting and 'be seen' front lighting. But not on par with the brighter conventional lights now available.
But it adds drag from whatever magnetic force is used. That is for every generator..... changing electric fields generate changing electric fields and that creates drag.

Not sure if they use the rotating aluminum rim to generate the field (electric meters spin an aluminum plate, so there could be a possibility). But they don't explain how it works at all. And yes, it will cause some drag.

good, right when disc brakes are on most new bikes they come out with a product betting on rim brakes.
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Old 01-02-18, 10:07 AM
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Don Buska
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Marketing 101

Marketing 101: Never tell people something you don't want them to hear!

One of my businesses uses LED lamps that I need to have a decent match of their illumination between batches. In order to do this match I dug deep and spent a $11.89 USD to buy a digital LUX meter (shown below). Now I can match the LUX level between batches of LED's that may come from different sources.




It is obvious they aren't showing you any LUX or Lumen ratings because they don't want to show how pitiful they are. That's why every picture or video only shows the lamps in a dark, dusk or shaded conditions. Stick that bike out in direct sunlight and watch that light just disappear. As I said earlier the Reelights worked much the same and I abandoned them the minute my fellow riders told me they saw nothing from my flashing front light while only being 20-30 feet in front of me during daylight hours. BTW, they looked great inside my home

Also, note they don't say the LED is 0.3 watt, only the power drag per LED. They are bragging about efficiency. In that case why not cut the LED out of the circuit completely and they could brag it only has a 0.003 watt drag

Sorry folks the current state of LED physics just isn't there. Yes, LED's are more powerful and efficient than five years ago, but there are limits. As was indicated above as a back-up to other lights for night riding these may be OK. But I've not yet run into a situation where my battery or rechargeable LED lights have failed me. Plus, these LED's do have a microprocessor in their circuit so what's to say they won't fail unexpectedly too??

I've not followed to many KickStarters, but I'm not sure they'll reach their goal. This reminds me of the little portable water generation thermos on KickStarter last year. Supposedly sucked water out of the air like a dehumidifier, but was portable and could be taken on a hike or bike ride. Only problem was it didn't or couldn't work.
<< Watch!! Albeit, the KickStarter pitch was really classy
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Old 01-02-18, 12:52 PM
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Good taillights are still hard to find.
Also the definition of what makes a tallight good are not often seen.
Theese are a few hints:
http://www.bikelightdatabase.com/best/taillights/
http://www.gizmodo.com.au/2012/03/th...le-tail-light/
http://www.specialized.com/de/de/ftb...pert-taillight
LED Taillight Construction
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Old 01-04-18, 01:47 AM
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Someone told me the original Magnic lights weren't impressive, even if the technological concept is.
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Old 01-04-18, 08:07 AM
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As an owner of a Magnic Light, I can tell you that they work, are plenty bright for the rear, and have no perceptible drag. This is for the 2nd Gen model from about 2 years ago. For a front light they are not as bright as a good dynamo light nor the latest battery powered light cannons, but that's why they are in pairs for the front. They do produce a decent beam the one time I saw one. Consider how many people are riding with those cheap Knog lights that are barely visible from 5 feet away, these aren't like that, they produce enough light to be seen and will light up the roadway. I've had many people stop me to ask about my rear Magnic light as it is very bright, and then cyclists can't figure out what powers it as it has no wires and is too small for even a AAA battery, plus it is clearly motion generated as it dims at a stop.

I use a modern dynamo front light and there are always claims that drag is imperceptible, but I don't find that to be the case. I always turn my light off during the day because I can feel it, but just barely, and just in general the hub has drag. My Magnic light OTOH I can't feel at all. Let's put the .3w into perspective. If you are putting out 100 watts while riding, not a lot, and increase your cadence from 80 to 81, your power will go up by about 2 watts. And can you hold a difference of 1 rpm cadence? You're doing good to hold a 5rpm cadence range.

It is obvious they aren't showing you any LUX or Lumen ratings because they don't want to show how pitiful they are. That's why every picture or video only shows the lamps in a dark, dusk or shaded conditions. Stick that bike out in direct sunlight and watch that light just disappear. As I said earlier the Reelights worked much the same and I abandoned them the minute my fellow riders told me they saw nothing from my flashing front light while only being 20-30 feet in front of me during daylight hours. BTW, they looked great inside my home

Also, note they don't say the LED is 0.3 watt, only the power drag per LED. They are bragging about efficiency. In that case why not cut the LED out of the circuit completely and they could brag it only has a 0.003 watt drag

Sorry folks the current state of LED physics just isn't there. Yes, LED's are more powerful and efficient than five years ago, but there are limits. As was indicated above as a back-up to other lights for night riding these may be OK. But I've not yet run into a situation where my battery or rechargeable LED lights have failed me. Plus, these LED's do have a microprocessor in their circuit so what's to say they won't fail unexpectedly too??
Everyone on this thread is knocking them without ever having seen one.
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Old 01-04-18, 10:40 AM
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Originally Posted by Don Buska View Post

It is obvious they aren't showing you any LUX or Lumen ratings because they don't want to show how pitiful they are.
One of their updates says the prototype of the new, smaller style gives 15 lux/pr. but they expect the production version to be higher.
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Old 01-05-18, 10:18 PM
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I don't think they should be marketed as a light- That's the best turn signal implementation I've seen.
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