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  1. #226
    Senior Member socalrider's Avatar
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    Litespeed Liege, Motorola Team Issue Eddy Mercxk, Surly Crosscheck Cyclocross bike, Fisher Supercaliber Mtn. Bike
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    I personally use a PB Superflash on my seatpack but just added one of these for a little extra added visibility.. I just wrap it around my rear triangle, just above my rear brakes.. Nathan Acid Reflex Snap Band LED Light.. I also use it for running at night, just wraps around my arm.. It uses 2 small watch batteries for the leds..

    http://www.pricepoint.com/detail/169...-Snap-Band.htm

  2. #227
    AEO
    AEO is offline
    Senior Member AEO's Avatar
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    Quote Originally Posted by Unknown Cyclist View Post
    I've tried P7s and R2s with a few different red filters and the Ultrafire is much brighter.

    There's no point it turning your front light into a rear, you don't get much light and you just have to buy another front light.....



    It's worth noting that the energy of a photon is proportional to it's frequency (violet can have nearly twice the energy of red), so if you filter out everything but red you are losing more than 80% of the light and only keeping the lower energy part.

    The redder the filter the more light it's stopping, so realistically you may only be allowing less than 10% of the light emitted by the P7 through.

    Still......if it's a cold night you can warm your hands on it.....

    this, and white LEDs are not white to begin with.
    most use a blue LED with phosphor coatings to produce red and green which results in a visibly white light.

    the higher power violet and blue lights aren't as visible from further away due to the wave length.
    green, amber and yellow are quite good for being seen.
    Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
    http://sanfrancisco.ibtimes.com/arti...ger-photos.htm

  3. #228
    Fat Bottomed Fredwina Heifzilla's Avatar
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    Another for this Ultrafire. I got mine on Monday and installed it. This is blindingly bright, even in daylight. Excellent value, IMO.

    How has it been holding up in wet weather for you guys?
    "A bicycle does get you there and more. And there is always the thin edge of danger to keep you alert and comfortably apprehensive. Dogs become dogs again and snap at your raincoat; potholes become personal. And getting there is all the fun."

  4. #229
    uke
    uke is offline
    it's easy if you let it. uke's Avatar
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    I used mine in a flash flood a couple of weeks ago. Was pretty rad.

    JesseDuncan:I just love how "cars will be forced to cross the double yellow lines on dangerous limited visibility roads".

    I don't want to have a head on but oh god, I HAVE to fling myself into oncoming traffic to pass, theres no alternative!!!

  5. #230
    Senior Member
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    Quote Originally Posted by Heifzilla View Post
    How has it been holding up in wet weather for you guys?
    Mine has only been used in moderate rain, but no problems so far.....
    Making a Pilom Triple LED Headlight ? I have parts available :)
    Bell R2 Conversion
    HID Project
    Dynohub R2 Project & Custom Helmet Lighting
    Aurora P7 Review

  6. #231
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    I have been running mine since Feb/March of this year in rain without any problems. portland, oregon rain, so more constant that super heavy.

    If you look back at my previous post, I dropped this about 5' while moving on my bike at about 10mph with no ill effect.

    FYI

  7. #232
    Ths Hipstr Kills Masheenz cc700's Avatar
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    Oct 2006
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    i really want one but i already have a pbsf and figure i should probably save my money.

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