Description

OPTOTRONIC® OTi 50W G2 1250C Programmable LED Driver (*275TJX)

The OPTOTRONIC® OTi 50W G2 1250C Programmable LED Driver is a high-performance constant current driver designed for reliability, flexibility, and energy efficiency across a wide range of lighting applications. Delivering up to 50W of output power, it supports an adjustable output current from 300–1250 mA, allowing precise tuning to meet specific fixture requirements.

This updated model replaces the legacy 2743YN (79371), offering enhanced functionality, improved efficiency, and advanced programmable features for modern lighting systems.

Built for demanding environments, this driver operates in temperatures from -40°C to 55°C and features an IP66 rating for superior protection against dust and moisture. Its advanced capabilities—including constant lumen output, thermal protection, and end-of-life indication—ensure consistent performance and extended system lifespan.

The integrated 0–10V dimming and AstroDIM functionality enable smooth, energy-saving light control without the need for complex external systems. With high efficiency (up to 90%) and a strong power factor, the OTi 50W G2 provides dependable, cost-effective operation for both indoor and outdoor installations.

Engineered for durability and intelligent performance, this LED driver is an ideal solution for modern lighting systems requiring precision, longevity, and adaptability.

Product Features:

    • 50W Constant Current Output – Reliable performance with adjustable output current from 300–1250 mA for flexible application use
    • Wide Input Voltage Range (120–277V) – Compatible with a variety of commercial and industrial power systems
    • 0–10V Dimming + AstroDIM – Smooth, energy-efficient dimming with autonomous scheduling capabilities
    • Programmable Driver – Customize output current, dimming levels, thermal protection, and more using compatible software/tools
    • High Efficiency (Up to 90%) – Reduces energy consumption and operating costs
    • Constant Lumen Output – Maintains consistent light levels over time for improved lighting quality
    • Advanced Thermal Protection – Intelligent temperature monitoring with automatic current reduction to protect LEDs
    • End-of-Life Indicator – Built-in signal alerts when the driver reaches its programmed lifetime
    • Durable & Weather-Resistant (IP66 Rated) – Suitable for harsh indoor and outdoor environments
    • Wide Operating Temperature Range (-40°C to 55°C) – Designed for extreme conditions
    • Comprehensive Protection Features – Includes over-voltage, short-circuit, overload, and thermal protection

Key Application Notes:

  • Ideal for Commercial & Outdoor Lighting – Suitable for street lighting, area lighting, wall packs, and industrial fixtures

  • Works with Constant Current LED Systems – Designed specifically for LED modules requiring controlled current output

  • Flexible Fixture Integration – Compact design allows easy installation in a wide range of luminaires

  • Dimming System Compatibility – Compatible with standard 0–10V dimming controls; requires proper wiring for non-Class 2 circuits

  • Standalone Smart Dimming (AstroDIM) – Enables scheduled dimming without external control systems—great for roadway and security lighting

  • Thermal Sensor Integration (NTC) – Supports external thermistor placement near LED hotspot for enhanced thermal protection

  • Indoor & Outdoor Use – IP66 rating allows use in wet, damp, and harsh environments

  • Wide Temperature Performance – Reliable operation in extreme climates from -40°C to 55°C

  • Energy Optimization Applications – Constant lumen output and dimming features help reduce long-term energy consumption

  • Maintenance Planning – End-of-life indicator allows proactive service and replacement scheduling

  • Installation Considerations – Ensure proper isolation when using PRG/NTC terminals and follow wiring diagram for safe operation

  • Programming Required for Custom Setups – Use compatible programming tool/software to configure output current and advanced features before installation

Applications:

  • Architectural building mounted
  • Bollards
  • Cobra heads
  • Decorative landscape lighting
  • High-mast
  • industrial high bay
  • Mini wall packs
  • Roadway lighting
  • Shoebox

Downloadable Documentation:

SKU#*275TJX