godlike2
Member
Background to this question...Our Music Concert Hall is getting its 24 ERS front lights, that use HPL 575 lamps, replaced with LED ERS fixtures. The front light is used during non-performance time (rehearsals and classes) and they were constantly burning out the HPLs by leaving them on for hours! Signs to turn off lights (trying to change the culture) and programming the lighting system to turn off at certain times didn't help. This space is not managed during the day but has public performances in the evening. If there are burned out lamps the faculty complain (even though they are responsible for the culture of use). Since HPLs are getting harder to find (consistently) and they are not cheap, I have been able to talk the administration into purchasing LED replacement ERS fixtures.
While talking with a theatrical lighting rep and the in house electricians, during a demo of LED house lighting fixtures and LED ERS fixtures, it was mentioned that the LED power circuits should be turned off whenever possible to extend LED fixture life span. The thought is that even though the DMX controller has "turned off" the LED fixture, the LED fixture is always connected to "constant power" and so its not the LED emitter that fails early but its the driver that fails due to heat derived from being always connected... and needs replacement before the emitter.
We have replaced our D20 modules, in the SR48 dimmer rack, with R20 and Thru Power modules, so to kill power to those LED circuits, the circuit breakers on those modules would need to be thrown in order to kill constant power. Having students or faculty going into the Dimmer closet and throwing circuit breakers is not a great idea. It seems like the answer would be a switch between the dimmer rack and the fixtures to disconnect those circuits? Thoughts...
While talking with a theatrical lighting rep and the in house electricians, during a demo of LED house lighting fixtures and LED ERS fixtures, it was mentioned that the LED power circuits should be turned off whenever possible to extend LED fixture life span. The thought is that even though the DMX controller has "turned off" the LED fixture, the LED fixture is always connected to "constant power" and so its not the LED emitter that fails early but its the driver that fails due to heat derived from being always connected... and needs replacement before the emitter.
We have replaced our D20 modules, in the SR48 dimmer rack, with R20 and Thru Power modules, so to kill power to those LED circuits, the circuit breakers on those modules would need to be thrown in order to kill constant power. Having students or faculty going into the Dimmer closet and throwing circuit breakers is not a great idea. It seems like the answer would be a switch between the dimmer rack and the fixtures to disconnect those circuits? Thoughts...