How Can I Measure Lumen, Efficiency, and Color Temperature of a Street Lamp?

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Discussion Overview

The discussion revolves around methods for measuring the lumen output, lumen efficiency, and color temperature of a street lamp. It touches on practical testing versus relying on manufacturer specifications and references relevant standards for measurement.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant inquires about how to measure lumen output, lumen efficiency, and color temperature of their street lamp.
  • Another participant questions the need for testing, suggesting that the manufacturer's data sheet may provide the necessary information.
  • A third participant mentions the existence of 'ASTM Standards on Color and Appearance' as a resource for applicable tests and measurement methods, emphasizing the distinction between photometric and colorimetric quantities.
  • A suggestion is made to check www.vernier.com for equipment that may be suitable for these measurements, though it is noted that the quality may not be research-grade.

Areas of Agreement / Disagreement

Participants express differing views on the necessity of conducting measurements versus using manufacturer data, indicating a lack of consensus on the best approach.

Contextual Notes

The discussion does not resolve the specifics of measurement techniques or the reliability of manufacturer data, leaving open questions about the accuracy and applicability of suggested methods.

Who May Find This Useful

Individuals interested in practical measurement techniques for lighting, as well as those seeking to understand the standards related to photometric and colorimetric measurements.

Lisun
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I want test my street lamp get lumen, lumen efficiency and color temperature, how can I get these data？
 
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Why test? can't you look at the manufacturer's data sheet?
 
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Lisun said:
I want test my street lamp get lumen, lumen efficiency and color temperature, how can I get these data？

There are a variety of applicable tests and measurement methods listed in 'ASTM Standards on Color and Appearance'. Note that you are asking about photometric and colorimetric quantities, not radiometric quantities.
 
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Check www.vernier.com. Their equipment is not research quality, but it may be what you're looking for.
 

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