Demonstration of LED Retrofit Lamps at the Smithsonian American Art Museum, Washington, DC Page: 11 of 54
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Contents
Preface .........................................................................................................................................................111
A ck now ledgem ents......................................................................................................................................111
Executive Summary ...................................................................................................................................... v
1.0 Introduction and Background ....................................................................................................... 1
1.1 Interests and Concerns for LED Use in the Museum................................................................ 2
1.2 Input from the Museum Director ................................................................................................. 3
2.0 Methodology.........................................................................................................................................4
3.0 Demonstration Gallery Description, Lamps, Lamp Issues, and Measured Light Levels ................ 5
3.1 Color Issues ................................................................................................................................ 13
3.2 The Thermistor Issue.................................................................................................................. 14
3.3 The Lighting Design, and the Lighting Designer's Reaction to LED Lamps ......................... 15
4.0 Two Galleries at the Renwick Gallery............................................................................................. 17
4 .1 T h e G rand S alon ......................................................................................................................... 17
4.2 Contemporary Craft Gallery 202............................................................................................. 20
5.0 The Luce Center Gallery Quandary............................................................................................... 23
6.0 The Lighting Designer's Wish List ................................................................................................. 26
7.0 Energy Comparison ............................................................................................................................ 27
7.1 L ife-C ycle C ost A nalysis ........................................................................................................ 27
7.2 Payback Horizons and Economic Feasibility........................................................................ 28
8.0 Lessons Learned for Museum Lighting.............................................................................................. 30
9.0 References for Museum Lighting and Artifact Conservation............................................................ 32
Appendix A : Smithsonian American Art Museum Early Modernism Gallery Input Data for
Life-Cycle Cost Analysis.................................................................................................................. A.1
Appendix B : Summary Life-Cycle Cost Calculations .............................................................................B.1
Appendix C : Comparative Analysis of Life-Cycle Cost...........................................................................C.1
Figures
Figure 1. The American Experience gallery at the Smithsonian American Art Museum, lighted
with typical cylinder-shaped track heads.......................................................................................... 2
Figure 2. Early test of LED replacement lamp in Rose Gallery. Photo courtesy of PNNL.................... 4
Figure 3. PAR30 display track head with three types of lenses (70, 55, and 55 x 750), and a
cross-baffle............................................................................................................................................ 6
Figure 4. PAR30 wallwasher track head, shown with lens, light reduction screen, and optional
kicker reflector...................................................................................................................................... 6
Figure 5. Early Modernism Gallery lighted with incandescent and halogen lighting ("before"
condition). Photo by Scott Rosenfeld ........................................................................................... 10ix
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Miller, Naomi J. & Rosenfeld, Scott M. Demonstration of LED Retrofit Lamps at the Smithsonian American Art Museum, Washington, DC, report, June 22, 2012; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc828649/m1/11/: accessed July 18, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.