Dear Sir or Madam, Glad to know that you are focusing on solar energy field. We would like to introduce Hybrid Inverter with MPPT Controller/OFF Grid inverter. Key Features as following: Output Power factor 1.0Wide PV input range up to 500VDCBatteryless support,work without battery daytimePure sine wave inverter Selectable high power charging currentSelectable AC input voltage range for home appliances and personal computersConfigurable AC/Solar input priority via LCD settingCompatible with mains voltage or generator powerAuto restart while  AC is recoveringoverload and short circuit protection      Smart battery charge design for optimized battery performance Cold start function A waiting of reply you soon.Samples testing and factory visiting is welcome. -----------------------------------Best Regards Gary YuSales ManagerShenzhen Kewo electric technolgy CO., LIMITED,www.kewoinverter.com Email: info@kewoinverter.comADDRESS: 3 Floor,Block 8,St George Industrial Park,XIN YU Road,Sha Jing,Bao'an, Shenzhen, Guangdong, China 51826Tel: 86-755-84186866, Fax: 86-755-84186866, Cell/Whatsapp: +86-18038034988 Skype: gary.yu88