| 摘要 |
<p>A system for promoting passive end of life source failure in response to thermal cycling of the light source (14) includes an automatic relay (16) in communication with a ballast (12) or groups thereof for interrupting power to the associated light sources. Alternatively, the relay (16) may be configured to short out the light source (14) directly. The automatic relays (16) are configured to turn off associated light sources at predetermined or random times for predetermined or random durations.</p> |
