About Product:Product attributes brand YSH protection type Short Circuit overcharge overdischarge overload charging time 2USB number of interfaces 6 ripple and noise 60db product certification UL CE FCC ROSH PSE weight 22kg overall size 410*290 * 290mm output frequency 50-60 warranty for 1 year standard type US, UK, Australia, UK, China, India and South Non-standard battery type lithium iron phosphate battery product series Black Knight Display LCD digital display battery capacity 2016Wh