The GU10 reflector in Black matt matches the RAL material colours of the URail system. It emits a pleasant neutral white light colour and is ideal for URail spots with a GU10 socket. REFLECTOR - reflector lamps provide directed light where it is needed. SYSTEM COLOURS - the RAL material colours match the Paulmann URail system. COLOUR TEMPERATURE - 4000 Kelvin: radiating neutral white light with a somewhat stimulating effect. BRAND MANUFACTURER - Paulmann has been passionately making lights for 40 years. ECONOMICAL - LED technology uses up to 80% less energy than conventional incandescent lamps.