eldoLED OPTOTRONIC® OTi 25W Compact Programmable LED Driver

The eldoLED OTi 25W Compact Programmable LED Driver offers high-performance output control in a small form factor, ideal for architectural and commercial LED lighting. Featuring programmable output from 150–1250mA, isolated 0–10V dimming down to 1%, thermal protection, and AUX output options, this Class P listed driver is designed for flexibility, efficiency, and long-lasting operation.

Key Features

• Constant current output: 150–1250mA (programmable, 1mA steps)
• Max output power: 25W
• Wide output voltage range: 8–55VDC
• 0–10V isolated dimming (1% dim-to-off)
• LED thermal protection via NTC
• Soft start, dimming sync, constant lumen output
• AUX models support 12V/20V/24V configurable output
• NTC protection with programmable derating curve
• Overload, over-voltage, short-circuit, over-temp protection
• Compact F-Style and J-Style housings

Technical Specifications

• Input Voltage: 120–277VAC ±10%
• Frequency: 50–60Hz
• Power Factor: >0.9 @ full load
• THD: <20% @ full load
• Efficiency: ≥87% @ 120V, ≥86% @ 277V
• Input Current: 0.28A @ 120V / 0.12A @ 277V
• Output Power: 25W max
• Ripple Current: <20% @ 1250mA
• Load Regulation: <3%
• Soft Start & Dim-to-Off: Included
• Dimming Range: 1–100%
• NTC Range: ≤25kΩ
• Dim-to-Off Threshold: OFF <0.7V / ON >1V
• Standby Power: <1W
• Startup Time: <0.5 sec (California Title 24 Compliant)

Environmental & Mechanical

• Operating Temp: -30°C to +50°C
• Max Case Temp (Tc): 90°C (80°C for 50k hrs)
• Storage Temp: 75°C
• Humidity: 85% RH, non-condensing
• IP Rating: IP20
• Housing Size: F-style: 4.3″ × 2.4″ × 1.2″, J-style: 4.2″ × 2.4″ × 1.2″
• Mounting: 4.5″ (F-style) / 2.0″ (J-style)

Certifications & Compliance

• UL Listed Class P
• RoHS Compliant
• FCC Part 15 Class A EMI
• Dry and Damp Location Rated
• NEMA SSL 1-2010 Transient Protection (2.5kV)
• 5-Year Warranty (at 80°C Tc)