Summary

a LED light for indoor/outdoor use.
Ideal to take on a camping trip to light up the tent.

Instructions

Requirements:

1 x 3D printed LED light
1 x 2 AA-battery holder (or any other sufficient 3v supply that fits)
2 x AA battery
6 x bright LED
1 x toggle switch
wiring
soldering iron
hotglue

Instructions:

print the LED light
insert toggle switch and LED's
solder cable between the LED pins (long ones to long ones, short ones to short ones)
solder battery holder + to middle pin of the toggle switch
solder long leads wire from LED's to any other pin on the toggle switch
solder ground from battery holder to ground of LED's
position battery holder with hotglue
test
if successful : hotglue LED's in place, and cover wires.

Tips:

on the back there are 2 holes for hanging your lamp onto something, either use some wire or use cable ties to hang your light to someting.
even on cheap batteries, the lights last for quite some time (mine lasted for over 24 hours)
all parts can be found on dx.com for a few bucks