Gigahertz-Optik's new BTS256-E LED-Luxmeter characterises any type of light source for quality control. The LED-luxmeter provides all necessary luminance, colour and spectral data to fully qualify SSL, CFL and any other type light source. Its Bi-Technology sensor improves measurement accuracy and is precisely cosine corrected. The LED-luxmeter with integrated shutter auto-ranges over an eight decade dynamic measurement range.