The ECOdrive 85W D4i-Certified LED Driver is an indoor linear, programmable constant current driver developed exclusively for the North American market. Engineered to meet demanding architectural lighting requirements, it delivers up to 85 watts of output power and supports precise dimming performance down to 1%. Its advanced capabilities—such as Dim to Off, Vaux Output, and synchronized ON/OFF timing—enable refined light control and system reliability for both direct and indirect lighting applications. Designed for flexibility and performance, the ECOdrive 85W model supports a wide programmable output current range from 700 to 2300mA, adjustable in 1mA increments with a default setting of 1400mA, and operates across a universal input voltage range of 120–277V AC. This adaptability makes it suitable for linear, recessed, and architectural lighting systems that demand fine control and consistent operation.
Certified under D4i standards and compliant with DALI-2 protocols, the ECOdrive 85W driver enables bi-directional communication between the driver and fixture-integrated components. This intelligent communication capability allows luminaire-specific data to be shared with lighting management systems, facilitating the creation of smart, interoperable lighting solutions. Through its digital DALI-2/D4i interface, the driver supports smooth dimming from 1% to 100% with a Dim-to-Off threshold of zero, ensuring precise brightness transitions and consistent lighting quality across installations. The driver also includes LEDcode support for integrated control and configuration, allowing lighting designers and engineers to tailor performance parameters to specific project requirements using programming tools such as 274A17 (51645), 2747CR (51647), or 2743V1 (51648).
The ECOdrive 85W D4i driver incorporates a robust set of protective and performance-enhancing features, including LED thermal protection, constant lumen output management, and end-of-life indication. It maintains an output voltage range of 10–56VDC and a maximum output ripple current below 20% at 2300mA. Additional safeguards include non-latching protection against over-voltage, overload, short circuit, and over-temperature conditions, with thermal foldback activation at 105°C to preserve component longevity. With line and load regulation both maintained within 3%, the driver ensures stable operation even under variable input or load conditions. Startup is swift, with LED power-up time under one second, while its Class 2 constant current design ensures safe, code-compliant performance for a range of fixture types.
The driver is rated for ambient operating temperatures from -20°C to 50°C, with a maximum case temperature (Tc) of 85°C at 50,000 hours of use. It can be stored up to 70°C and maintains performance in environments up to 85% relative humidity, non-condensing. It meets stringent electromagnetic and electrical compliance standards, including FCC Part 15 Class A for EMI, EFT IEC61000-4-4 Level 3 for transient immunity, and carries UL approval for dry and damp locations under UL file number E320395. With a Class A sound rating, the driver operates quietly, making it ideal for architectural and interior applications where acoustic performance is important.
A standout capability of the ECOdrive 85W D4i model is its Constant Lumen Maintenance feature. Over time, LEDs naturally experience lumen depreciation, often leading to an initial overdrive of current to maintain brightness near end-of-life, which results in higher energy consumption and potential thermal stress. The constant lumen maintenance function intelligently compensates for this aging process by dynamically adjusting the drive current, ensuring consistent light output throughout the fixture’s operational life. This not only enhances system reliability and extends LED longevity but also optimizes energy use, delivering stable performance and light quality across years of continuous operation.
Overall, the ECOdrive 85W D4i-Certified LED Driver represents a sophisticated, reliable, and intelligent control solution for indoor architectural lighting systems, combining flexibility, digital interoperability, and energy efficiency to meet the needs of modern lighting design and management.
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