- -25%

This device measures the number of Lumens emitted by your light source (MH - HPS - CFL).
-20% | €24.90 |
-15% | €26.45 |
-10% | €28.01 |
-7.5% | €28.79 |
-5% | €29.56 |
This device measures the number of Lumens emitted by your light source (MH - HPS - CFL).
By definition, 1 lumen corresponds to the luminous flux emitted by an isotropic light source (uniform point). We also speak ofluminous intensity calculated using thespectral luminous efficiency function.