I decided to build 2 100W LED flashlights after seeing this:
Since I do photography as a hobby, I thought they could be quite useful. I also build PC’s for personal use, so had a bunch of heatsink that I could use. Years ago I used peltiers for overclocking and CPU cooling and wanted to give that a try.
I went and bought all the other components and started the assembly process. I could not solve the problems (fast enough) that I had with mounting the LED on the peltier heatsink, so went with a standard heatsink. If I had tools, I might revisit the peltiers for cooling the LED. When I needed to build the frame I decided to try something else. I had an old $4.00 6V lantern flashlight, from Menards (bought a second one), lying around (was going to try and convert it to an LED light), so decided to use that instead.
Step 1: The Completed First Light.
Here is the first one I completed with a battery pack I put together.
Step 2: Starting the Second Light (electronics).
The mounted LED and electronics. The electronics was assembled according to the instructions in the mentioned video.
Step 3: Preparing the Frame/body.
Preparing the frame/body and getting ready to assemble it.
Step 4: Testing.
Testing before assembling the light. Just making sure everything works!
Step 5: The Final Product(s).
Assembled and both lights working!!
· I did not add a lens. If I did, I would need to do more mods, and just the reflector served my needs.
· I modified a USB car charger, so I can use this in and around the car as well.
· On the second light I only added an input voltage meter. The first light shows the output voltage too.
· I still need to shorten the battery pack wires for a cleaner look.
· For the second light I still need to add a battery support.
· For both lights I still need to add mountings so I can use them on a tripod for photography.
· I still need to determine run times on different battery packs.
Thanks for looking.