Make a 1000w Equiv. LED Flashlight!




About: Hello! I'm Matt and I love making things. I'm always thinking of new ideas and how to make them as awesome as possible, always with a mind to share the process online. Take a look at my profile and see if th...

Here's how to make a phenomenally bright 1000w eqiv. LED flashlight!
It's designed to be operated with just one hand, with easy control of brightness, and can be powered by either batteries or an AC adapter.

Can be built for around £25 if you get the CPU cooler for cheap.

Full parts list with purchasing links: Google Docs - 100w LED Parts List

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    6 Discussions


    Question 1 year ago on Introduction


    I've made this project and it is almost finished, but I have a question about the power output/current consumption.

    I have a power meter connected to the input, and it shows (with the LED regulated to the maximum brightness) a current consumption of 2.1A, wich multiplied by the battery voltage (3S LiPo @11,4V) equals to 24W, which is very far from the power announced for the LED that I bought - 100W - and even for the target of this instructable.

    The step up DC-DC converter is regulated correctly to the 30V output required to feed the LED.

    Can you please tell me what might be wrong?




    3 years ago

    Does anyone know where I can buy the mounting bracket for the LED? I have the LED and glass, but can't find the mount to attach it to the frame.

    I have been wanting to do this as well. Your video is excellent and very helpful. I am looking to slim down the design a bit and was wondering what is the smallest in Heat Sink I could go while still having as much power as needed from the LED? I am in the planning stages and am trying to figure out what to get. Thanks! :)


    Great work!

    I totally thought of flight of the navigator right before you said it :D


    4 years ago on Introduction

    This looks awesome! I'd love to see some written instructions so I could take this out to my workbench. Great instructable!