NHS Lighting

SIELLA

The Siella LED with UGR22 has proven itself in office environments with high energy efficiency, simple installation, pleasant light and low investment costs. The Siella LED with UGR19 has been specifically developed for illuminating computer screen workstations in accordance with current standards. This makes it possible to implement lighting concepts for highly different office areas with UGR 22 or UGR19 with just one product range. This not only simplifies planning and enables economic implementation but also creates a uniform ceiling appearance. In total, this makes the series an ideal standard solution for modern office lighting.

Product description/details

Luminaire type

Recessed LED luminaire with translucent cover.

Applications

Offices, Corridors, Foyers, Conference rooms, Retail areas, waiting zones.

Mounting methods

For system ceilings with exposed grids. Version M84, system dimension 625 x 625 mm. The luminaire is also suitable for applications in plasterboard ceilings with an accessory ordered separately. (Siella ZBB/4).

Optical system

Cover of translucent PMMA. With wide light intensity distribution. Harmonious light effect due to homogeneously illuminated light emission.

LED system

Luminaire luminous flux 3400 lm, connected load 31,00 W, luminous efficiency of luminaire 109 lm/W. Light colour warm white, correlated colour temperature (CCT) 3000 K, Colour locus tolerance (initial MacAdam) ≤ 4 SDCM, general colour rendering index (CRI) Ra > 80. Mean rated service life L80(tq 25 °C) = 35,000 h, mean rated service life L70(tq 25 °C) = 50,000 h.

Luminaire body

Surface coated white (RAL 9016). Dimensions (L x W): 620 mm x 620 mm, luminaire height 15 mm. Permissible ambient temperature (ta): - +.

Electrical version

With external operating device, switchable. The luminaire complies with fundamental requirements of applicable EU regulations and product safety legislation and bears the CE symbol.