Automatic faucet is developed according to infrared sensor principle. The faucet body is designed under the artistical concept of solid geometry. Its intellectualized flshing function is high quality living experience which is brought by GLLO technology. WATER SAVING: Water comes out once you put your hands in the detection zone and stops when you draw back your hands. HYGIENIC: Since hands do not need to touch faucet to wash, itis convenient, hygienic and able to avoid bacterial mutualinfection effectively. POWER SAVING: 4pcs AA alkaline batteries can last 2 years based on 300 cycles a day. OPTIONAL POWER SUPPLY: Both AC of 220V and DC of battery operation is optional. EASY TO MAINTAIN: The setting of filter makes the cleaning of water pipe very convenient. POWER INSUFFICIENT REMINDER: When batteries run out, its indicator will flash to remind you to change batteries. Technical Parameters Single-Hole: Aperture φ 35mmFaucet Body: φ53×118×141mm Power:d.c 6V/a.c 220V Standby Consumpsion:≤0.5 mW (dc)/ ≤0.6 W (ac) Use Environment:0-55°C Detection zone:36cm (±15%) Dia. Of Inlet & Outlet:(DN 15)G1/2" Water Pressure:0.05Mpa - 0.6Mpa Standard:CJ/T 194-2004 Showproducts Faucet's Controller Installation diagram