Метка: UL773 photocell

Стандарты UL и BS для фотоэлементов: почему значения люкс различаются?

Why Do Photocell LUX Values Differ Between UL and BS Standards? One of the most common questions raised by illumination producers, project engineers, and importers is why a photocell tested in one market may show different switching LUX values in another. In several cases, purchasers relate datasheets from numerous contractors and notice that similar products appear […]