| 摘要 |
A system such as a luminaire (100, 200, 300, 500) configured with selected aspects of the present disclosure includes one or more light- emitting diode ("LED") drivers (210, 310, 510) having one or more dimming interfaces (312, 512). One or more strings of LEDs (106, 206, 306, 506) are operably coupled with one or more outputs of the one or more LED drivers. A user interface element (108) may be provided, e.g., in a manner such that it is accessible from an exterior of a luminaire. A variable resistance assembly (218, 318, 418, 518) is operably coupled with the one or more dimming interfaces, and may include a plurality of potential configurations in which the variable resistance assembly applies one or more respective predetermined resistances to the one or more dimming interfaces. The user interface element may be physically actuated between a plurality of positions that correspond to the potential configurations of the variable resistance assembly. |
