Rainbow was founded in Germany in 1984. We have already specialized in audio and energy for about 40 years. We have a professional energy storage team with One-Stop Service. A professional specializing in lithium battery and energy storage systems, focusing on home intelligent storage power lithium iron phosphate battery(5kw\10kw\12kw), outdoor portable power (320w\700w\1200w), station applications, and providing global technical support.