A rating system that measures a product's (often a luminaire's) resistance to environmental factors (primarily dust and moisture).
From http://www.sensorsone.co.uk/ip-rating-checker.html , we see that an IP20-rated fixture is impervious to "touch by fingers (>12mm)" and offers "No protection" from moisture intrusion.
From http://www.sensorsone.co.uk/ip-rating-checker.html , we see that an IP20-rated fixture is impervious to "touch by fingers (>12mm)" and offers "No protection" from moisture intrusion.
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