Tridonic’s DLE G2 PRE Tunable White system for downlights provides an adjustable colour temperature range of 2,700 to 6,500 K, to be able to offer the entire white range from warm white to cool white and gives an impressive high colour rendering index of Ra > 90. The system provides a simple way to create dynamic lighting solutions such as Tunable White and human centric lighting applications.

The system is available as a pre-calibrated kit that consists of perfect matched components: a compact LED driver and a Tunable White LED module which allows for a high quality of light and high colour consistency (SDCM 3) while considerably simplifying Tunable White lighting solutions.

The system includes a dimmable two-channel DALI-DT8 surface-mount driver with an adjustable output current of 350 to 1,050 mA and a maximum output of 38 W. The driver is equipped with a digital interface (DALI DT8, DSI, switchDIM, corridorFUNCTION) to which either a digital control signal (DALI) or a standard pushbutton switch (switchDIM) can be connected. At the touch of a button, the light can be dimmed from 100% to 1% without any change in the selected colour temperature. The rate at which the light switches on and off can be set between 0.2 s and 16 s via the Power-up-Fading and Fade-to-Zero functions. The colour temperature can also be set via colourSWITCH using conventional pushbutton switches. The memory function remembers the last dimming value and colour temperature.

The corridorFUNCTION can be programmed via a DALI-USB interface using masterCONFIGURATOR. This function can be activated manually by applying a voltage of 230 V to the switchDIM connection for five minutes. Overtemperature, short-circuit, overload and no-load protection as well as reduced surge current amplification round off the range of functions. The LED downlight module is available with a luminous flux of 2,000 lm or 3,000 lm.

The Tunable White system has a high system efficiency up to 100 lm/W and is extremely economical in standby mode with a power draw of only 0.25 W. It is also suitable for emergency lighting systems in accordance with EN50172 and has a life of 50,000 hours. Tridonic offer a 5-year system guarantee.