CESP Strive to High Quality Patent Product in Military & Industry Areas since 2007, is the Largest OEM/ODM Supplier for Explosion Proof Lighting Solution of China and the 1st Company in China to Be Certify for Hazardous Location LED Lighting Fixture By UL & CUL. Existing Products with Complete Certification, Including UL, CUL, DLC, ETL, CETL, CNEX, CE, ROHS, ATEX, SAA, C-TICK , Ect.Abundant Financial and Exquisite Technology is to Providing Technical Services and Complete Security Solutions, Free R&D and Free Technical Services, Quickly Response that Just Only 15 Days to Design, 30 Days to Die Sinking, 1 Month Can be Done for Class I Div 2 Certification, 3 Month Can be Done for Class I Div 1 Certification.