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what call light source mid-value lifespan?

Hits:  UpdateTime:2015-06-16 17:35:41

Reply: among batch tests lamp for N lifespan, according to lamp damage the sequence, NO.[the (N-1) /2+1] individual lamp lifespan¡ê¡§the N for odd number¡ê?or the NO. N/2 and NO.(N/2+1) individual and of lamp lifespan half¡ê¡§the N for even number¡ê?is known as should batch lamp mid-value lifespan.

TAG:  light source mid-value lifespan