Note - some boxes may be dusty or show signs of age. Boxes were individually wiped off prior to being wrapped in plastic and bubble wrap. Also Note: Some of the boxes may show signs wear - crushed on one side or another in several rare cases bulbs have been replaced with those other new packs. A simple situation of supply and demand.
However, they have been carefully handled since I had them, but are an older item cannot guarantee fully that each work for their advertised time. Their efficiency has been determined to not be up the standards for today and recent legislation made finding them very difficult. I do not personally test each light bulb.