I want to use a 9v battery to power a led for a project on one of my guitars. I'm not sure what kind of resistor I would need. On hand I have a 33ohm and 1m resistors. The led is a 5mm cylinder with an inward cone on top. The led ranges from red, blue, yellow, and green in different patterns. It came from a light up snow flake and the original power source are 3 LR44 button batteries. I'm not sure what rating the led is, since I didn't see anything on the packaging. The schematic is just the same as the original setup minus the 9v(LR44s) and the switch(little slider).
Thanks in advance for the help!