eldoLED OPTOTRONIC® OTi 50W Programmable Linear LED Driver

The eldoLED OPTOTRONIC OTi 50W DIM-1 LED Driver delivers programmable output current, 0–10V dimming, thermal protection, and advanced features like constant lumen maintenance and an end-of-life indicator. This linear, Class 2 driver is designed for architectural-grade performance in indoor LED applications.

Key Features

• Programmable output current: 400–1400mA (1mA resolution)
• Default current: 1050mA | Max output power: 50W
• Output voltage: 10–55VDC
• 0–10V isolated analog dimming (1–100%) with dim-to-off
• Architectural-grade dimming protection
• Soft Start, End-of-Life Indicator, Constant Lumen Maintenance
• NTC input for LED thermal protection
• UL Class 2 rated, FCC Class A EMI compliance

Electrical Specifications

• Input Voltage: 120–277VAC ±10%
• Frequency: 50–60Hz
• Input Current: 0.52A @ 120V / 0.23A @ 277V
• Power Factor: >0.9 @ full load
• THD: <10% @ 120V / <20% @ 277V
• Efficiency: ≥88% @ 120V / ≥89% @ 277V
• Startup Time: <1 second
• Standby Power: 1.4W (120V) / 1.7W (277V)
• Inrush Current: 1.33A (120V), 2.66A (277V)

Dimming & Protection

• Dimming Control: 0–10V Analog (isolated)
• Dimming Range: 1% to 100%
• Dim-to-Off Threshold: 0.7V OFF, 1V ON
• Over Voltage / Over Load / Short Circuit Protection: Yes (non-latching)
• Over Temp Protection: Foldback @ 110°C
• NTC Input: Yes – required for thermal foldback function

Environmental & Mechanical

• Operating Temperature: -30°C to +50°C
• Max Case Temp: 85°C (Warranty valid up to 75°C)
• Relative Humidity: Max 85%, non-condensing
• Length: 11.02" (280mm)
• Width: 1.15" (29.4mm)
• Height: 1.0" (25.4mm)
• Mounting Length: 10.63" (270mm)
• Remote Mounting Distance: Up to 16 feet

Certifications & Compliance

• UL Recognized – File #E333135
• FCC Part 15 Class A
• NEMA SSL 1 2010 – 2.5kV Surge Protection
• IEC 61000-4-4 EFT (1kV)
• RoHS Compliant
• Sound Rating: Class A
• Dry and Damp Location Rated
• 5-Year Limited Warranty