[SML] LED conversion

[Lindberg, John]

We have been replacing our wash lights with ETC D60s. When we redid our concert hall we replaced 72 S4 Par 575w fixtures with 46 D60 Studio fixtures. I don’t know any exact savings, we ran numbers on heat, draw, lamp replacement and anything else we could. What I do know is that for a room that is in use most academic days for 6-8 hours with those lights running about 80% intensity we are no longer air conditioning the room during the winter. My energy people  are very happy about that.

> 
> Message: 3
> Date: Wed, 23 Oct 2019 17:19:54 -0700
> From: Ben Thoron SML <bthoronsml at gmail.com>
> To: Stagecraft <stagecraft at theatrical.net>
> Subject: [SML] LED conversion
> Message-ID:
> 	<CAAJAKQnO_mDXzdJGnkJ6so8JAf9Cazqhn8BCWmf7jv9q4qdqpg at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
> We're planning to convert 50% of our incandescent fixtures to LEDs in
> the next several years.
> It would be useful to be able to justify the expense by calculating
> the energy savings.
> 
> All the variables of usage, intensity, color, and differences between
> light plots are making my head hurt.
> 
> - Has anybody had success in either calculating the energy savings or
> measuring them?
> 
> Thanks ever so much,
> 
> Ben Thoron
> Production Manager
> The Old Globe
>