DC-DC 5-32V to 12V 3A Automatic Voltage Stabilizer Power Converter Regulator. Features: short circuit protection, over current protection, over heating protection, under voltage protection. Built in multiple protection, with high conversion and stability, the maximum conversion rate of more than 95%, low heat, stable and reliable. Organic silicon packaging technology, better thermal conductivity, IP67 grade waterproof, shockproof, moisture-proof, dust-proof. With aluminum alloy shell, it is safer and better heat dissipation than traditional plastic one. Applicable to audio, routers, surveillance cameras, LED lights, printers, security systems, portable DVD, photovoltaic panels, LED car displays and a variety of 12V voltage applications.