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  1. G

    What kills Luxeons? I need to know

    Maybe if you were using NiMH cells it would cause that problem. I've heard they don't have the internal resistance of Alkalines and even thought the voltage is lower, the current is higher and fries the LS's. Dan
  2. G

    What kills Luxeons? I need to know

    I've been using a 3D DD setup on my bike helmet light for about 6 months now with no problems...so its unlikely that's the main cause of your failures. Dan
  3. G

    A 5 watt Luxeon Star Bike light

    I've been riding with a set of 1W LS's for a while now - one on my head and one on the bars. I mountain bike exclusively. The 1W with the original optics is great for a bar light, about equivilent to a 5W halogen flood. It was great for climbing, but not so good for the downhills. It just didn't...
  4. G

    Bicycle LED headlight ???

    Benski, I've been working on a set of Luxeon MTB lights as a possible setup for an upcoming 24 hr race. I have one LS on the helmet and one on the bars. The helmet one is direct driven from 3 D cells. The bar light is driven from 4 D cells through 3 10ohm resistors in parallel - both setups give...
  5. G

    LS through a convex lense?

    Has anyone tried focusing a LS (post collimator) through a lense, say from a cheap camera or something, to get a tighter beam - useful for something like...mountain biking! Would that even be feasible? I've found the collimated beam to be bright, but not penetrating enough. What's the...
  6. G

    The 'DoubleStar Blaster' Luxeon Star Bike Light

    Re: The \'DoubleStar Blaster\' Luxeon Star Bike Light I've been mountain biking for a few years now, but never into night riding until recently. I wanted a good set of lights, but was unable to shell out the $300 to $400 required. So I tried the LS mod route. I've got a 3 D cell direct drive on...
  7. G

    First mod, first post

    Here's my first experiment with the LS - a mountain biking helmet light. It's a simple 3D direct drive single LS system. The batteries are in an el cheapo Walmart light (switch still works), which goes in my backpack, and the LS is in a gutted Radio Shack AA headlamp. The space for the batteries...
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