Risen Solar Technology – one of the pioneers of the industry founded the first company producing photovoltaic solar modules back in 1986. The Risen brand can offer one of the highest quality products on the market made in China. Independent studies have shown that Risen solar modules are extremely reliable over the long term, with the manufacturer declaring that the Risen Titan S RSM40-8-405M achieves an efficiency of 21.3% and will degrade no more than 0.55% per year on average. The modules have a longer warranty than usual on the market: even 12 years for the product and a 25-year 84% efficiency guarantee.