Gurten

The Gurten is a recessed LED downlight with three selectable light colours in one luminaire, available in seven sizes from 7 to 35 W. It achieves a luminous flux of 600 to 4'500 lm at an efficacy of up to 128 lm/W. Thanks to its robust die-cast aluminium housing and protection rating IP44, it can also be used in damp rooms. For better glare control, it is additionally available from Ø170 mm as a UGR variant with UGR < 19.

Key facts:

• Can also be used in damp rooms thanks to IP44
• Also available as a UGR variant for better glare control (UGR < 19)
• Robust die-cast aluminium housing, white powder-coated
• 3 light colours in one luminaire
• Power levels adjustable via DIP switch
• Optionally available: UGR prism diffuser for Ø170, Ø190, Ø228 and Ø280 mm

Scope of delivery:

• 1x Gurten downlight (in the selected size, light colour and control)
• 1x separate control gear

Note: Further versions available on request

ELECTRONICS

• Primary voltage: 220 - 240 V AC / 50-60 Hz
• Secondary voltage: 15 - 22 / 33 - 38 V DC
• Control gear: Separate branded control gear
• Power: 7 W (Ø85) / 10 W (Ø110) / 12 W (Ø145) / 18 W (Ø170) / 25 W (Ø190) / 25 W (Ø228) / 35 W (Ø280)
• Maximum system power: 35 W
• Energy efficiency class: E

LIGHTING TECHNOLOGY

• Luminaire type: Downlight
• Light colour: 3'000 / 4'000 / 5'700 K
• Light colour adjustable: Yes (via DIP switch)
• Colour rendering: Ra > 80
• Maximum colour deviation: < 6 SDCM
• LED type: SMD 2835
• LED brand: Citizen
• Rated luminous flux: 600 lm (7 W) / 1'050 lm (10 W) / 1'420 lm (12 W) / 2'250 lm (18 W, Ø170) / 2'250 lm (25 W, Ø190) / 3'000 lm (25 W, Ø228) / 4'500 lm (35 W); UGR variant (Ø170-Ø280) around 5-9 % lower
• Luminaire efficacy: up to 128 lm/W
• Light distribution: Symmetric
• Light emission: Direct
• Beam angle: 90°
• Cover: Opal or prismatic
• Glare rating: UGR < 19 (on request, Ø170-Ø280)
• Lifetime: 50'000 h L80 B50

FUNCTIONALITY

• Dimmability: On/off, DALI
• Motion detector: No
• Presence detector: No
• Integrated emergency function: Yes (optional)
• Application area: Indoor & outdoor

DIMENSIONS

• Diameter: 85 mm (7 W) / 110 mm (10 W) / 145 mm (12 W) / 170 mm (18 W) / 190 mm (25 W) / 228 mm (25 W) / 280 mm (35 W)
• Head diameter: 61 mm (7 W) / 80 mm (10 W) / 104 mm (12 W) / 124 mm (18 W) / 144 mm (25 W, Ø190) / 180 mm (25 W, Ø228) / 214 mm (35 W)
• Installation diameter: 68 mm (7 W) / 85 mm (10 W) / 118 mm (12 W) / 140 mm (18 W) / 160 mm (25 W, Ø190) / 200 mm (25 W, Ø228) / 230 mm (35 W)
• Height: 39.5 mm (7 W) / 38 mm (10 W) / 45 mm (12 W, 18 W, 25 W, 25 W) / 52 mm (35 W)
• Weight: 260 g (7 W) / 330 g (10 W) / 650 g (12 W) / 780 g (18 W) / 900 g (25 W, Ø190) / 1'060 g (25 W, Ø228) / 1'750 g (35 W)

CONNECTION

• Cable length: 20 cm (2-pin quick connector)

MATERIAL

• Housing colour: White RAL 9016
• Light emission: PMMA

FURTHER DATA

• Protection rating: IP40 (inside) / IP44 (outside)
• Protection class: II
• Impact resistance: IK03
• Operating temperature: -20 to +45 °C
• Warranty: 5 years
• Certificates: CE, RoHS