This listing is for a set of (10) Leviton OPP20-D2 power packs, designed for controlling lights in interior spaces. They are suitable for use with 120/230/277 volt AC current and are brand new. The power packs are specifically designed to work with Leviton brand products and are equipped with a variety of port types to ensure compatibility with a wide range of electrical outlets, switches, and dimmers. This product is perfect for those looking to improve the lighting in their home or office and can be easily installed by a qualified electrician.