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The National Institute for Occupational Safety and Health (NIOSH)





NIOSH Jupiter II Wide Area Light
Keywords: Drilling Glare Hauling Improving visual contrast Inadequate illumination 
 Machine mounted lights Reducing glare
The existing illumination provided by a traditional LED headlight (top), as compared to the improved illumination provided by the NIOSH-developed Jupiter II Wide Area Light (bottom). Photos by NIOSH. (click for larger image)
The NIOSH Mining Program conducts mine illumination research to address the visual needs of the aging miner workforce and to improve miner safety by reducing glare and improving a miner’s ability to see mine hazards associated with slip, trip, and fall events and moving machinery accidents. This research enables improvements in mine lighting so miners can better see hazards, thereby reducing the potential for accidents. One result of this research is a light-emitting diode (LED) area light called the NIOSH Jupiter II Wide Area Light.
NIOSH developed the Jupiter II Wide Area Light wide area light for roof bolters and the illumination of working areas. The design objectives were to maximize area illumination while reducing glare. Manufacturers and mine operators can mount the Jupiter II in a variety of positions on equipment and in general work areas. The top photo shows the illumination from a typical LED machine headlight used on mining machines, and the bottom photo shows the increase in illumination from the Jupiter II.
Specifications Summary
Total output
1664 lumens (lm)Efficacy
78.1 lm/wattMaximum candela
983 candelaVoltage
120 volts ACCurrent
0.1854 ampsPower
21.29 watts
Downloading the Documentation
Jupiter II Wide Area Light (click for larger image)
The downloadable ZIP file includes a PDF describing a functional overview of the Jupiter II Wide Area Light, a README file, and numerous individual software and schematic files created by NIOSH or NIOSH partners in this research. The CDC's Technology Transfer Office has approved the public release of these files.
NIOSH Jupiter II Wide Area Light
For further information about NIOSH illumination research or working with the downloaded documentation, contact NIOSH Electrical Engineer John Sammarco at 412-386-4507 or ZIA4@cdc.gov.

See Also
Do Light-Emitting Diode Cap Lamps Enable Improvements in Miner Safety?
Illumination
Improved LED Mine Lamp Designs
Infographic: Shine More Light on Hazards
LED Area Lighting to Reduce Glare for Roof Bolter Operators
NIOSH Illumination Research Addresses Visual Performance Needs with LED Technology
NIOSH Saturn Area Light
The Potential Impact of Light Emitting Diode Lighting on Reducing Mining Injuries During Operation and Maintenance of Lighting Systems
The Saturn LED Area Light Provides Improved Illumination for Greater Roof Bolter Safety
Technology News 560 - The Saturn LED Area Light Provides Improved Illumination for Greater Roof Bolter Safety
Underground Coal, Metal, and Nonmetal Mine Illumination Systems for Improving Miner Visual Performance
Page last reviewed: December 11, 2019
Page last updated: May 9, 2019
Content source: National Institute for Occupational Safety and Health, Mining Program
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