Digital Systems

OPTOTRONIC Intelligent Ultraflat

Product family features
  • Line frequency: 0 Hz | 50 Hz | 60 Hz
  • Versatile DALI window driver up to 75 W due to flexible output characteristic
  • Supply voltage: 220…240 V
  • Available with output current range: up to 700 mA
  • Direct Ultraflat sensor connection via LEDset (LS/PD LT2 LI UF Sensor)
  • Use with Ultraflat DALI sensor (LS/PD DALI LI UF Sensor)
  • Constant Lumen Output (CLO)
  • Non-isolated drivers
  • DALI-2 certified (Part -101,-102 and -207)
Product family benefits
  • Ultra-flat housing (11 mm height) for innovative luminaire designs and applications
  • LEDset interface for direct Ultraflat sensor connection (LS/PD LT2 LI UF sensor)
  • Fully programmable via T4T software (NFC, DALI Interface)
  • Lifetime: up to 100,000 h (temperature at Tc = 65 °C, max. 10 % failure rate)
  • High-quality dimming of 1…100 % by amplitude dimming
  • High quality of light thanks to <1% output ripple current
  • Very high efficiency
  • Fulfill safety requirement due to overload, overtemperature, Hot Plug protection
Versatile scope of application due to OSRAM DALI Technology:
  • Easy to use in corridors and restrooms because of three-level Corridor function
  • Touch DIM application: easy to control via pushbutton or sensor
  • Energy efficient Touch DIM operation due to automatic switch-off at sufficient residual light
  • Suitable for emergency Installations (acc. to EN 60598-2-22 and IEC 61347-2-13, appendix J) thanks to DC detection (0 Hz, pulsating DC), on/off switchable
  • Feedback of power consumption and operating hours (Fit for SMART GRID)
  • Suitable for buildings according to EPBD/BREEAM/LEED due to automatic Constant Lumen Output setting
  • Luminaire information for easy maintenance


Sort by:
Nominal output voltage
Nominal output current
Data sheet
OTi DALI 35/220…240/400 D LT2 UF L
54…240 V 75…400 mA 360.0 mm 30.0 mm 11.0 mm
OTi DALI 75/220…240/700 D LT2 UF L
54…240 V 150…700 mA 360.0 mm 30.0 mm 11.0 mm

Information about Family

Cutting edge design - total design freedom

This driver has a height of only 11mm for cutting edge luminaire design and shows a direct sensor connection with LS PD LI UF TD. The product is fully digitally programmable by DALI and NFC and offers 0.1…100% DALI dimming as well as wide operating windows, up to 550mA.
Areas of application
  • Linear lighting for office, education, industry, storage areas and retail
  • Installation in emergency lighting systems according to IEC 61347-2-13, appendix J
  • Suitable for luminaires of protection class I



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