Shenzhen Shengjing Optoelectronic Technology Co. Ltd (SJ) was established in 2007 with four series of core products, office lighting, industrial lighting, road lighting and smart lighting.SJ are ISO9001 certified and managed by advanced ERP systems. Our products have been certified by TUV, SAA, C-TICK, UL, DLC, FCC, CE, REACH and ROHS,etc. All SJ products are backed by 3~5years warranty and Product Liability Insurance. Your business with us is safe.