[SML] Dimmable medium screw base LED lamps

[Duncan Mahoney]

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


Duncan Mahoney
Head of Technical Direction
Professor of Theater Practice in Production
University of Southern California School of Dramatic Arts
________________________________
From: Ford Sellers <ford.sellers at gmail.com>
Sent: Thursday, May 4, 2023 8:59 AM
To: Stagecraft Mailing List <stagecraft at theatrical.net>
Cc: Duncan Mahoney <dmahoney at usc.edu>
Subject: Re: [SML] Dimmable medium screw base LED lamps

Thanks Duncan,
Chandeliers are on dimmers (architectural).
This is just single color warm white (2700k or 3000k-ish).
The chandelier has a diffuse tube around the lamps, so filament doesn’t matter, but omnidirectional output is required. And dimming below 10%.

Ford Sellers
Sr Product Manager
CHAUVET Lighting
5200 NW 108th Avenue
Sunrise, FL 33351
USA
from my iPhone

On May 4, 2023, at 9:51 AM, Duncan Mahoney via Stagecraft <stagecraft at theatrical.net> wrote:


Is the chandelier constant power or on a dimmer?

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

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


Duncan Mahoney
Head of Technical Direction
Professor of Theater Practice in Production
University of Southern California School of Dramatic Arts
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