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  1. camilopinoy

    Intermittent ON/OFF performance of 70W HPS lighting fixture

    hi, we use philips advance HPS lamp ballast (control gear) with catalog number 71A79N1. the lighting fixture brand is Appleton 70W hps E-27 lamp holder. when we use this control gear to E-27 lamp holder and GE lamp PN: LU70/90/MO/D/I/27, why the lamp turns ON for 10 minutes and after that...
  2. camilopinoy

    UL 2279

    hi guys, anyone who has a softcopy of UL 2279? i think sharing (info mats) is one objective of this website, so please share it to me.
  3. camilopinoy

    Spark Gap...

    Hi. I need help. I don't know much about ISOLATOR SPARK GAP and LIGHTNING EQUIPOTENTIAL BOND. Can anyone please share some information you have. Thanks.

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