What is the average cost to get a solar panel design UL certified?

  1. spartanking1978 profile image58
    spartanking1978posted 8 years ago

    What is the average cost to get a solar panel design UL certified?

    For more information about UL certified photovoltaics please visit my hub on the topic:

    http://hubpages.com/hub/Underwriters-La … -Standards

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