ما هو Luminosity حاسبة؟
Total light output من light source in lumens. Full angle at which 50% من peak luminous intensity is maintained.
جارٍ تحميل الحاسبة…
Total light output من light source in lumens. Full angle at which 50% من peak luminous intensity is maintained.
جارٍ تحميل الحاسبة…