Fish bowl lamp w. 45 LED

thingiverse

I needed a lamp to light my son's fish bowl, but I couldn't find anything suitable or worth buying, so I designed this lamp myself. To build it, you'll need: 45 pieces of 5mm straw hat super bright LEDs A 12v power supply Epoxy glue and hot glue Some wires A soldering iron and soldering tin The LEDs I bought had a nominal voltage of 3.2 volts and peak at 3.4 volts, so I wired them in parallel to draw around 6 volts. I then took two rows of these parallel clusters and put them in series, again drawing around 6 volts. Next, I took two more rows of LEDs and wired them in parallel, then soldered those two rows in series, once more drawing around 6 volts. Finally, you take those two 6-volt clusters and wire them in series to draw a total of 12 volts. In this configuration, you won't need any resistors, but be aware that the power supply you use must not let out more than 12 volts, or it could ruin the LEDs. If you use a larger supply, just add an appropriate resistor or resistors to keep everything safe. Print it flat on the bed, both the lid and lamp parts. I used 20% infill with three walls, five top layers, and seven bottom layers, and printed it at 0.15 layer height in PET-G and PLA. Don't use support, but a brim is probably necessary. Have fun building this project, and feel free to use it at your own risk. Share it as you see fit.