Optima’s sleek Solis faucet operates on solar power
Photo: Andrew McCaul
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Free Flow

We know hands-free faucets save water. But this one saves energy, too. Optima’s sleek Solis faucet operates on solar power—either sunlight or artificial light—using an infrared sensor and microprocessor to control flow automatically. An integrated control lever adjusts water temperature. About $645; Sloan Valve
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