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    BS EN 61347-2-7

    Crystalite Electrical Engineering
    Company
    Unit 2,4-5, 9/F & 4-5,10F
    Block C Wah Tat Industrial Centre
    Kwai Chung
    8-10 Wah Sing Street
    Hong Kong
    BSI logo

    Certificate Number: KM 37117
    Scope: Particular requirements for D.C. supplied electronic ballasts for emergency lighting

    Original Registration Date Effective Date Last Revision Date Expiry Date
    1997-06-17 2025-04-11 2025-04-11 2027-01-22