COTEK inverter is designed to provide AC power and independent small-scale off-grid solar power systems developed for mobile devices, easy to install and use and quality pure sine wave output of its basic characteristics. S150 and S300 are two models COTEK series only adopt frequency design, powerful nonlinear load carrying capacity of its main characteristics apply to domestic small independent off-grid solar power systems and automotive mobile backup power configure a simple remote control switch remote control interface can easily achieve the purpose; S1500 has a very high quality reliability, simple built-wasted energy saving design saves unnecessary at no load standby. Equipped with standard RS-232 communication interface can be connected to COTEK remote controller CR-5 remote control purposes, but can communicate with the calculator, with a simple instruction set so as to realize in order to achieve programmable calculators and monitoring purposes. COTEK inverter selection to find Yantai Hill Friends.