wDALI-2 BT5 CW-WW LED Dimmer CC DT8 - Lunatone 350mA DALI-2

Lunatone wDALI-2 CWWW BT LED Dimmer CC DALI 2-Channel LED Dimmer (Constant Current)

Wireless DALI-2 LED dimmer with independent brightness and color temperature control via Bluetooth 5 – ideal for constant current LED modules in luminaires.

DALI-2 LED dimmer for wireless brightness and color temperature control. 350mA constant current, 12–48V DC, Bluetooth 5, compact for flush-mount boxes.

Key Features

• Three operating modes: DT8, Balance&Dim, Dim2Warm – Flexible control of brightness and color temperature according to requirements – from simple single-address control to independent channel addressing.
• 350mA constant current per channel, max. 15.75W @45V output voltage – Safe and stable LED control for mid-range constant current modules without external power sources.
• Input voltage range 12–48V DC (SELV) – Compatible with standard low-voltage power supplies, flexible system integration.
• Dimming range 0.1–100%, switchable PWM frequency 122Hz/250Hz/500Hz/1kHz – Flicker-free brightness control, prevention of interference with camera sensors and other electromagnetic devices.
• Bluetooth 5 range 8–12m (open field up to 150m), encrypted communication – Reliable wireless control for up to 10 devices per bridge, secure data transmission.
• Compact housing 59 × 33 × 15mm, flush-mount installation – Space-saving integration directly in flush-mount boxes or luminaire housings.
• Integrated short-circuit protection, overload protection, no-load immunity – Robust protection functions prevent damage from miswiring or overload.
• No-load power approx. 180mW @12V, high efficiency – Energy-efficient standby losses reduce system costs.
• Configuration via DALI-Cockpit PC software – User-friendly parameterization without additional hardware required.
• Expected service life >100,000h, operating temperature -20°C to +60°C – Long-term reliability in stable indoor environments and temperature-resistant installation.

Applications

Architectural lighting with color temperature switching

Control of warm white and cold white LED modules in accent lighting, facades and wall luminaires via central DALI systems without cable routing.

Intelligent office and commercial luminaires

Integration in ceiling, wall or recessed luminaires for daylight-appropriate lighting with stepless dimming functions and color temperature adjustment.

Retail and exhibition lighting

Dynamic product lighting with wireless remote control for scene design without cable penetrations.

Hotels, restaurants and event lighting

Flexible lighting scenes through stepless brightness and color temperature control, centrally managed via DALI standard.

Product Benefits in Detail

Operating Modes and Control Flexibility

The wDALI-2 BT5 CW-WW LED Dimmer supports three configurable operating modes: DT8 mode uses a single DALI address for combined brightness and color temperature control according to DALI Device Type 8. Balance&Dim operates with two separate DALI addresses for independent control of overall brightness and channel distribution (e.g., for targeted color temperature shifting). Dim2Warm uses a single DALI address where dimming operations simultaneously alter color temperature. This flexibility enables optimal integration into different DALI system landscapes.

Wireless DALI Integration and Range

Radio connectivity is provided via the wDALI-2 BT5 Bridge, which can pair up to 10 dimmer modules. Communication is based on Bluetooth 5 Long Range with encrypted transmission. Typical radio range is 8–12m in normal building environments; up to 150m is possible in open field. Metal enclosures and moisture zones may reduce range – reception problems can usually be resolved through alternative positioning or device orientation.

Power Supply and Power Management

The device operates with input voltages from 12V to 48V DC (SELV safety extra-low voltage). During planning, it is recommended to choose input voltage 3–10V above LED voltage (e.g., 24V for 4–6 LEDs, 36V for 6–9 LEDs, 48V for 10–12 LEDs). Maximum output power per channel is 15.75W at 45V output voltage. No-load losses of approximately 180mW @12V enable efficient continuous operation scenarios.

PWM Frequency Selection and Flicker-Free Operation

PWM frequency is switchable between 122Hz, 250Hz, 500Hz and 1kHz. This flexibility enables adaptation to different camera sensor types and avoids unwanted interference patterns during video recording (e.g., 500Hz or 1kHz for professional video production). The low standard frequency of 122Hz also reduces high-frequency emissions in sensitive applications.

Installation and Connection

The compact housing (59 × 33 × 15mm) fits in standard flush-mount boxes and luminaire integration compartments. Connection is via spring-force terminals (Push-In Cage Clamp) for wires 0.2–1.5mm² without ferrules or 0.25–1mm² with ferrules. Installation and commissioning must be performed by qualified personnel. After connection, the device must be paired via the wDALI-2 Bridge and configured via DALI-Cockpit software.

Typical Applications

Use in a modern office luminaire with warm white (2700K) and cold white (6500K) LED modules: The dimmer is installed in the luminaire, the bridge positioned in the building DALI network. A daylight sensor controls progressive adaptation of brightness and color temperature via the bridge during daytime. At night, the luminaire is operated in warm white mode with reduced brightness. Second example: Retail exhibition lighting with multiple product zones. Each zone receives a wDALI-2 dimmer for individual scene design (e.g., warm for textiles, neutral-white for electrical devices). Scene programming is done centrally via DALI-Cockpit, switching commands and dimming curves are freely customizable.

Safety Information, Certificates & Warranty

Standards: EN 61547 (Electromagnetic compatibility – light electronic equipment), EN 55015 / IEC CISPR15 (Radio disturbance), EN 61347-2-13 (Safety of luminaire control equipment), EN 61357-1 (General requirements for control devices), EN 62384 (Electronic equipment for use in lighting applications). Test marks: UKCA, DALI-2. Insulation category II, insulation test voltage 3000VAC, rated surge voltage 4kV, pollution degree 2. Housing material PC/PA66 class V0 (flame-retardant). Protection class II for proper installation, protection type IP20. Installation only by qualified personnel with power disconnected.