The calculators on this page can be used to find current limiting resistors and currents for LUXEON STAR and UFO LED'S
The first calculator determines the resistance for a desired LED current while the second calculates the current for a given resistance.
If LED's are connected in series - ADD their voltage drops together to get the total voltage drop.
If LED's are connected in parallel - ADD their current ratings together to get the total Desired Led Current
Entering a zero for the LED voltage drop will yield the resistance and wattage for a resistance only circuit.
Brought to you courtesy of Quickar Electronics, Inc.