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.