Patent ID: 7498753

Claim:
A lighting system comprising: LEDs; a multi-step dimmable fluorescent lamp; a color/brightness sensor wherein the color/brightness sensor measures a combined light output of both the fluorescent lamp and the LEDs; and a controller programmed to: receive a request for a combined light output level; gradually adjust the output of the LEDs from an initial LED power fill to a first transient LED power fill; step the fluorescent lamp from a first fluorescent power level to a second fluorescent power level, while stepping the LEDs from the first transient LED power fill to a second transient LED power fill such that the combined light output of the fluorescent lamp and the LEDs remains the same; and gradually adjust the output of the LEDs from the second transient LED power fill to a final LED power fill such that the combined light output of the fluorescent lamp and the LEDs reaches the request for the combined light output level.