Luxurious, complete, solid-brass faucet set, precision manufactured by Modundry. Outstanding build-quality, finishing process, and appearance. This is a water-saving, DUAL-POWER (battery or plug-in) sensor faucet with automatic turn-on & shutoff. This can be used for residential or commercial applications, and will mount in any single hole or 4" spread sink with a center hole (deck plate is included). The faucet can be powered with either 4-AA batteries (not included) . This faucet is as easy to install as any standard faucet, and complete instructions are included. Please note that sensor faucets do not have hot & cold handles, so they are installed with cold water only.