Lumen Maintenance Testing of Off‐grid Lighting Products

Technical Notes Issue 8

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This Technical Note covers methods for measuring lumen maintenance of LED-based off-grid lighting products, focusing on low-cost methods to evaluate a product’s ability to provide long-term lighting service.

This document was produced by Lighting Global Quality Assurance. In February 2020, Lighting Global Quality Assurance evolved to become VeraSol, an independent program offering quality assurance services for solar energy kits and off-grid appliances.