Explosion protection to -CENELEC -IEC -NEC Can be used in Zone 1 and Zone 2 Zone 21 and Zone 22 Two enclosure types: 18W, 36W. Enclosure in glass fiber reinforced polyester, diff user in polycarbonate, corrosion-proof. Ex e enclosure with explosion-proof components inside. Safety interlock between enclosure and diffuser switches off on opening. Electronic ballast, power factor 0.95. Emergency unit with protections agai nst o ver c harge and over discharge. End of lamp life (EOL) rectification effect protection. STANDARD EXPORT PACKING