Photographs
- Key Words
- 4 light sources; incandescent, flourescent, HPS, LPS; lumens per watt14 70 100 143
- Location
- USDA Open House - lights
- City, State, Country
- Beltsville, Maryland, United States
- Date Taken
- March 1975
- Photographer
- J. C. Raulston
- Collection
- J. C. Raulston's Slide Collection
- Image Name
- 028-1323.JPG
- Image ID
- 49399