I received these light and opened the box to find that they already had the batteries installed. I removed all of the plastic pieces from the batteries and turned them all on to make sure they work. They all worked and are very bright. I put one in my closet, one in each of my kids closets(2), put one by my kitchen sink, one in a hallway that has no light, and by my back door. They all work great! The remote is easy to use and a great feature to these lights.  I am very pleased with them! Great product!