39.99

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Out of stock

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This device measures the number of Lumens emitted by your light source (MH – HPS – CFL).

Simple and effective, this measuring instrument will tell you the wear rate of your lamps :)

By definition,  1 lumen  corresponds to the  luminous flux  emitted by an  isotropic light source  (uniform point) we also speak of luminous intensity calculated  using the spectral luminous efficiency function.

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