IDEC PS3N-D 24A1CN x 20 units (50W) Brand new, unused. Please refer to the photos for product details. I received these from an acquaintance, so I don't have detailed knowledge. Please understand that I may not be able to answer all questions. Please refrain from purchasing if you are sensitive to items stored by a non-professional. Items will be shipped in simple packaging. No individual sales. Please also check my profile.