HOW TO – Make the ultimate 18v Bike Light!

Bikes Energy & Sustainability Fun & Games Technology
HOW TO – Make the ultimate 18v Bike Light!

Douglas.mauro writes –

“Mountain Biking at night (or early morning) is a true blast.. Using headlamps has been the only real choice short of spending some coin on a true bike light (some of these puppies cost >$500!!).

While the lack of light never stopped us from riding, the glory of having a MEAN bike light was calling me out.”Link.


  • Antique bike light LED mod – Link.
  • HOW TO – Make a Bike light holder/connector for …. – Link.
  • DIY solar bike light – Link.
  • HOW TO – Blinking cruiser bike light – Link.
  • Tape case bike light – Link.
  • HOW TO – Make a solar bike light – Link.
  • HOW TO – Make a 40-LED bicycle light – Link.

6 thoughts on “HOW TO – Make the ultimate 18v Bike Light!

  1. jasno says:

    How’s your depth perception with this light? One thing I’ve noticed when hiking with a headlamp is that you don’t see shadows, since the light is coming from the same angle as your eyes. Having the light down lower, maybe by the top of the fork, might help.

  2. vonSlatt says:

    I have a very similar project here:

    Home Depot Bike Headlight

    I run my 20 & 50 watt bulbs with a 12 volt 7 Ah computer UPS battery – I’m still using the same bulbs after several years.

    The Steampunk Workshop

  3. dhaartman says:

    Great job Douglas! Very clever running the MR-16 bulb on 18 volt battery pack. Has it burned out from the higher voltage yet? (I’ve heard that quartz halogens do better on overvoltage than undervoltage.) Check out my dual head bike light. I’ll be trying it with a 18v cordless drill pack soon!

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