<div dir="ltr">The problem is, manufacturers change the product without notice or name or number change, especially when a company is bought by another company. In 2014, after a lot of research,I selected the attached lamp for a very similar application - existing wall sconces with frosted glass - and a very tight budget. These were dimmed by a basic ETC D20 dimming module. I was quite pleased with the low end dimming performance. They faded out acceptably and the "pop" on was minimal.<div><br></div><div>ETC helped. They (at least used to) test LED lamps and fixtures for dimming, and have (or had) an extensive database with both objective and subjective results.</div><div><br></div><div>Good luck. Retrofit LED dimming was not easy - maybe it's improved since I was active with it.</div><div><br></div><div>And Ford - let's get together this summer when you're up here!</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, May 4, 2023 at 12:53 PM Duncan Mahoney via Stagecraft <<a href="mailto:stagecraft@theatrical.net">stagecraft@theatrical.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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I would buy a few "faux Edison" lamps and experiment. In my experience dimming down can work well, but dimming up they tend to pop on. But it depends on what the dimmer is doing with the power. And the output is as omnidirectional as an incandescent
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Duncan Mahoney</div>
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Head of Technical Direction</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Professor of Theater Practice in Production</div>
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University of Southern California School of Dramatic Arts</div>
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<div id="m_6099043403343416266divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Ford Sellers <<a href="mailto:ford.sellers@gmail.com" target="_blank">ford.sellers@gmail.com</a>><br>
<b>Sent:</b> Thursday, May 4, 2023 8:59 AM<br>
<b>To:</b> Stagecraft Mailing List <<a href="mailto:stagecraft@theatrical.net" target="_blank">stagecraft@theatrical.net</a>><br>
<b>Cc:</b> Duncan Mahoney <<a href="mailto:dmahoney@usc.edu" target="_blank">dmahoney@usc.edu</a>><br>
<b>Subject:</b> Re: [SML] Dimmable medium screw base LED lamps</font>
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<div dir="auto">Thanks Duncan,
<div>Chandeliers are on dimmers (architectural). <br>
<div>This is just single color warm white (2700k or 3000k-ish). </div>
<div>The chandelier has a diffuse tube around the lamps, so filament doesn’t matter, but omnidirectional output is required. And dimming below 10%. <br>
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<div dir="ltr">Ford Sellers
<div>Sr Product Manager</div>
<div>CHAUVET Lighting</div>
<div>5200 NW 108th Avenue</div>
<div>Sunrise, FL 33351</div>
<div>USA</div>
<div>from my iPhone </div>
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On May 4, 2023, at 9:51 AM, Duncan Mahoney via Stagecraft <<a href="mailto:stagecraft@theatrical.net" target="_blank">stagecraft@theatrical.net</a>> wrote:<br>
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Is the chandelier constant power or on a dimmer?</div>
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If you are looking for some lamps that dim and color change wirelessly on constant power, I'll find out what we have been using in onstage practicals. After some challenges getting them all set up, they have been reliable under show conditions </div>
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If you are looking for LED lamps that can be dimmed on a dimmer of some sort, most of the "faux filament" Edison LED lamps will dim well until the input voltage is below the forward voltage of the diodes. I've not seen anything LED yet that avoids a quick
transition (or possibly flickering, depending on the dimmer) from dim to off to dim on a dimmer </div>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Duncan Mahoney</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Head of Technical Direction</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
Professor of Theater Practice in Production</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
University of Southern California School of Dramatic Arts</div>
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</blockquote></div><br clear="all"><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature">Bill Conner Fellow of the ASTC</div>