C1D1
In North American, the explosion proof lighting should be tested and certified to both the UL 1598 and UL 844 safety standards, to help avoid explosive accidents during use of the lighting fixture. Among this, Lights approved by UL844 Class 1 Division 1 (C1D1) can be used in the most dangerous gas environment. So far, we NJZ Lighting is the FIRST and ONLY manufacturer who has obtained UL844 C1D1 and UL1598A certificate in China mainland.