Thank you for viewing. While I also have completely unopened items for sale, this item has been opened. As you can see in the photos, the first 1-9 pieces show almost no deterioration, so I believe they are unused, but this is not guaranteed, so I'm offering them at a lower price. I think they should work without any problems. The last one has some deterioration, so consider it a bonus. I will generally take the item to a convenience store within 24 hours. I will ship via Rakuraku Mercari Bin (Yamato Transport). *This listing is for a set of 9 + 1. *This item can be sold individually, but it will be more expensive due to shipping costs. Please consult in the comments section. *I plan to ship the item in the original box shown in photo 10. *If you need it urgently, please consider purchasing. National EFR25EL/22 100W equivalent, 22W consumption Compact Fluorescent Lamp, Reflector Type Warm White, Reflector Type, E26 Base For spotlights and downlights • Manufacturer: National (National / Panasonic's former brand) • Model Number: EFR25EL/22 • Type: Compact Fluorescent Lamp (Palook Ball)