optical
Luminous flux according to Bining : 150 lumens.
Colour temperature : 2400 K to 5000 K.
Service Range : 70 % of nominal flux after 25 000 hours.
Colour Rendering Index : CRI 90,
PMMA acrylic lens, efficiency ~90 %.
Available degrees : 16°, 24°, 40° & Elliptic.