Retrofitting Bike Light (Old Dynamo Bulb to a Battery LED)

My friend teased me to retrofit a headlight on my old bicycle, so I accepted the challenge. After spending few bucks on small soldering iron, custom switch and a new ultrabright LED flashlight, I started to work on it. First, dismantling the whole thing, picking out a bulb and other small items included in the former dynamo light.

Then I took a battery holder from a small flashlight, combining it, gluing a custom switch to the opening where the dynamo wires were running through and a bit of soldering, putting it all together with a LED light circuit board. Trying to fit it all inside and all set, new bicycle headlight ready. Ultrabright front bike light retrofitted to the former dynamo front light.

Strong light - retrofitted bike light

Strong light - retrofitted bike light

Strong light - retrofitted bicycle light

Strong light - retrofitted bicycle light

Retrofitted LED bicycle light

Retrofitted LED bicycle light

Retrofitted LED bike light with a custom switch

Retrofitted LED bike light with a custom switch

Inspiration also from the Bicycle Safari blog.

  • t

    hahah ;) superb its kinda like coverversion !

    RECYCLE

  • Very nicely done! Looks super clean!

  • EugenS

    Hi Daniel, I’ve moved in Bratislava about 5 months ago, and couldn’t find any place that sells second hand bikes or nice affordable city bikes. Also, not speaking Slovak doesn’t help me too much either. Do you think you could help me with some tips or advice? Please use the email address I provided with this comment. Thanks a lot!

  • Daniel is a master in LED light2old ones conversion! Last time on event called cyklokuchyna I saw him, and he is really master ;) lol