SHENZHEN, China, Oct. 22, 2026 /PRNewswire/ -- SINEXCEL (300693.SZ) has received TÜV SÜD unit certification for its StellaON 1250K/1575K power conversion systems (PCS), confirming compliance with Germany's VDE-AR-N 4110, 4120 and 4130 standards. The certification covers medium-, high- and...