Patent ID: 8456109

Claim:
A method of operating a Light-Emitting Diode (LED) light, comprising: supplying a current to a light source, the light source having first and second groups of light-emitting diodes (LEDs) and each group having at least one LED; generating a timing signal having a period; supplying the current to the light source at first current level; a controller sensing the first current level; in response to the first current level, the controller alternately pulsing the first and second groups of LEDs during the period, such that the first group of LEDs has a first duly cycle and the second group of LEDs has a second duty cycle during the period; supplying the current to the light source at a second current level different than the first current level; the controller sensing the second current level; in response to the second current level, the controller alternately pulsing the first and second groups of LEDs during the period, such that the first group of LEDs has a third duly cycle different than the first duty cycle and the second group of LEDs has a fourth duty cycle different than the second duty cycle during the period; and a change in the duty cycle of the first group of LEDs from the first duty cycle to the third duty cycle being inverse to a change in the duty cycle of the second group of LEDs from the second duty cycle to the fourth duty cycle.