2021-07-30 Sumray inverter has the characteristics of high reliability, complete protection function, excellent waveform quality, strong load capacity, fast response speed, high output precision, small standby loss and high conversion efficiency. Sumray has won unanimous praise from customers and dealers at home and abroad for its excellent technology, competitive price, high-quality service and diversified products. Sumray welcomes friends from all walks of life to visit, guide and negotiate business.