IP65 Mains voltage polycarbonate bulkhead. Suitable for stairwells, walkways, general amenity/security areas. Integral high frequency electronic ballast. Impact resistance polycarbonate body and diffuser. Hinged gear tray for ease of installation. Secure fixing with captive diffuser screws. BESA box fitting facility. Low level 20mm conduit entries. Surface wiring facility. Lamp included. Non-Dimmable. *Add suffix EM to catalogue number for emergency option (only available in 28/38W versions). Maintained, 3 hour duration. IP65 TC-DD fluorescent polycarbonate bulkhead. 20mm conduit entries. Emergency models have integral 3 hour battery back-up. TC-DD lamp included. 2 Year guarantee (excludes lamp).