Recent content by find_bruce

fenix-store
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    Custom Machined Housing?

    People seem to have dropped off making housings since cheap leds flooded the market. Easy2led.com sell a couple of nice housings, depending on the features you are looking for - 20 mm housing & 36 mm housing
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    Philips LED bike light

    Photobucket broke your links, so a quick little fix to bring the images back
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    repairing a Supernova Triple dynamo headlight

    Thanks for that Steve, I'm always interested in how the professionals have approached things - the supernova dynamo circuit is also interesting ;) Will take me a while to digest & might come back with some questions then. Cheers Bruce
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    Philips LED bike light

    Has anyone found a good online source for Spanninga ? I'm in Australia & there doesn't seem to be any dealers outside Europe & the US
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    Dynamo controller/module

    Late to the party I know but I have recently come across the forumslader kit which looks like it meets what the OP was after. My german is appalling, but what I can figure from google translate & talking to someone who owns one, it uses a micro-contoller to run a voltage doubler circuit at low...
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    High Vis and strong side vis rear bike light

    For side visibility I took my cue from this excellent post by BrianMc. My first efforts used a ping pong ball diffuser, then I found a silicone diffuser that fitted my red tail light with great side visibility that was still visible from the rear
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    Single 18650 DIY Bike Lights (front/rear) 3-up?

    Re: Headlight Questions/Clarifications Thanks for the clarification. Not my priorities, but that's your choice. 7,000 lumens for a single die would be imrpessive, but alas no, it was just my fat fingers typing. Should say 825. Don't worry about the thermal junction temperature - Cree likes to...
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    Single 18650 DIY Bike Lights (front/rear) 3-up?

    Ok lets start with the basics. Panasonic 3400 mAh are pretty much as good as it gets for 18650 cells. You want 1.5h run time. Starting with some rough calculations for a linear driver 3.4A for 1 hour = ~2.25A for 1.5 hours. I haven't mentioned volts as a linear driver burns off the excess...
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    Connecting two bicycle dynamos together for extra power?

    Steve has covered that there are other ways to skin a cat. I had held off responding as I was unsure about the effect of ripple current so am glad Steve covered that too. In terms of your basic questions, your dynamo is capable of producing much more than 12v. In simple terms, the dynamo (it...
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    Bicycle Stereo Battery

    SLA is cheaper, Li-po or li-ion are lighter. Your choice. As for the capacity, which crappy DX battery did you use & how long did it last ?
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    Dynamo lights for dummies

    Re: A minor update & a thought Sorry Steve, should have remembered things make more sense with a schematic. IIRC this is what I have at the moment What I am wanting to do is alternate LED4 and LED5 without flashing LED1-3.
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    Dynamo lights for dummies

    A minor update & a thought I have made a minor update to my lights - I regularly ride with my little boy on a weehoo, using a red flashlight as a taillight. I have been thinking about how to add an extra tail light into my dynamo set-up without stuffing up the standlight circuit. It occurred...
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    Building a tail light, Need help!

    Thanks Brian for the reminder that your lights were one of the things that convinced me about side visibility and increasing the apparent size of the light
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    Building a tail light, Need help!

    You pretty much have it covered & Nein has picked up the other issues. The heat dissipation for 1w is easy to deal with, so here are a few ideas for cheap ways to mount the leds copper plumbing cap computer heat sink a P60 drop in module, like this crazy bright vent light gut something...
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    Standlight and Martin's Circuit 12 help please!

    My understanding is that people are not using li-ion batteries for as cache batteries because the chemistry is not suited to small repeated charging - eg Steve uses Nicads for his standlights. I use a similar circuit based on post 70 - have never been able to detect any drop off in lumens while...
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