Single-handle faucets are plumbing fixtures that allow users to control both the temperature and flow of water with a single lever or handle. This design simplifies operation, making it easy to adjust the water to the desired temperature with one hand. They are commonly found in kitchens and bathrooms due to their convenience and modern aesthetic. These faucets typically consist of a cartridge or ball mechanism that regulates water flow. Available in various styles and finishes, single-handle faucets can complement different kitchen or bathroom designs. They are also easier to install and maintain compared to traditional two-handle faucets.