... 20W*2 40W*2 certificate number: CNEx07.0731 explosion-proof fluorescent light CFYseries of explosion-proof lights can be used reliably in the dangerous ... to IEC92-306-1980 standard,passed the examination of National Explosion-proof Test Center, and was approved by CCS(China Classification Society ... ).marine light,light 220V/110VExd IICT62*20W 2*40W marine explosion-proof fluorescent light