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Got this from ESTA Standards watch & thought others might find it useful: On February 23 the National Electrical Manufacturers Association published LSD 49-2010, Solid State Lighting for Incandescent Replacement—Best Practices for Dimming , which can be downloaded for free from the NEMA website...
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As promised- a follow up on our installation of Philips LED lamps When the Unison rack is running "with processor" ( as opposed to in test mode ) the lamps are much happier Some of them still go into their flashing mode- if yuo snap their power on. When changing levels with even a short fade...
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Hello, I recently used a S4 XT Zoom 15°/30°, and I noticed that I couldn't get a clear/sharp image with the 30° aperture, it was lot smaller (the biggest size was obtained approximatively with a 22° aperture). Is it because the 15°/30° are the field-angles, and not the beam...