Product code QF83 Easy QF83.39: Ø 163 mm - neutral white - DALI - UGR<19 - 16.9W 2021lm - 4000K - CRI 90 - White / Aluminium Technical description: Round fixed luminaire designed to use LED lamps with C.o.B. technology. Version with rim for surface-mounting. Reflector vacuum-metallised with aluminium vapours with an anti-scratch protective layer. Dissipater made of painted grey die-cast aluminium. Product complete with LED lamp in neutral white colour tone (4000K). Light beam with UGR<19 L<3000 cd/m2 ideal for environments with video terminals. Installation: Recessed using torsion springs which allow easy installation in false ceilings with thicknesses ranging from 1 mm to 20 mm. Colour: White / Aluminium (39) Weight (Kg): 0.68 Mounting: ceiling surface Wiring: product complete with DALI components Class II;IP20;IP54 (On the visible part of the product once installed) CE;ENEC-03;CCC S&E;EAC;QCERT;NOM;IRAM Product configuration: QF83.39 QF83.39: Ø 163 mm - neutral white - DALI - UGR<19 - 16.9W 2021lm - 4000K - CRI 90 - White / Aluminium Product characteristics: Total lighting output [Lm]: 2021 Total luminous flux at or above an angle of 90° [Lm]: 0 Total power [W]: 16.9 Emergency luminous flux [Lm]: / Luminous efficacy [Lm/W]: 119.6 Voltage [V]: - Life Time: > 50,000h - L90 - B10 (Ta 25°C) Number of optical assemblies: 1 Optical assembly Characteristics Type 1: Light Output Ratio (L.O.R.) [%]: 86 Number of lamps for optical assembly: 1 Lamp code: LED Socket: / ZVEI Code: LED Ballast losses [W]: 2.9 Nominal power [W]: 14 Colour temperature [K]: 4000 Nominal luminous [Lm]: 2350 CRI: 90 Lamp maximum intensity [cd]: / Wavelength [Nm]: / Beam angle [°]: / MacAdam Step: 2