24-7. Maintenance and CleaningMaintenance:Anti-interference plate IgnitorBallastA. As the pictures shown above, if the cable or cable joints turned yellow or black, pleasereplace the cable or cable joints immediately.B. Do maintain the fixtures every two months and make sure that all the screws andterminals have been locked firmly to make sure the normal performance of the fixtures.Negligence of maintenance would cause malfunction of the fixture.Cleaning:The cleaning of internal and external optical lenses and/or mirrors must be carried outperiodically to optimize light output. Cleaning frequency depends on the environment inwhich the fixture operates: damp, smoky or particularly dirty surrounding can cause greateraccumulation of dirt on the unit’s optics. Clean with soft cloth using normal glass cleaning fluid. Always dry the parts carefully. Clean the external optics at least every 20 days. Clean the internal optics at least every30/60 days.25-EC Declaration of ConformityWe declare that our products (lighting equipments) comply with the followingspecification and bears CE mark in accordance with the provision of theElectromagnetic Compatibility (EMC) Directive 89/336/EEC.EN55014-2: 1997 A1:2001, EN61000-4-2: 1995; EN61000-4-3:2002;EN61000-4-4: 1995; EN61000-4-5: 1995, EN61000-4-6:1996,EN61000-4-11: 1994.&Harmonized StandardEN 60598-1: 2004IEC 60598-1:2003+ corrigendum 2004Part 1:General requirements and testFollowing the provisions of the low voltage directive 73/23/EEC and 93/68/EEC