OTi25W/120-277/1A2/DIM-1 AUX Optotronic
Please type the current output the driver is programmed to ex. "500MA"
Click on image above to locate CI Code
Free shipping on orders over $350.
Description
Description
The eldoLED OPTOTRONIC OTi 25W Compact is a high-performance, programmable constant current LED driver designed for architectural and commercial lighting projects. Delivering up to 25W of output power with a programmable current range of 150–1250mA, it provides precise, flicker-free illumination for small and medium-sized LED fixtures. With isolated 0–10V dimming down to 1% and dim-to-off capability, this driver allows smooth and energy-efficient light control. Optional AUX output models provide 12V/20V/24V power for auxiliary circuits, offering added flexibility for complex lighting installations.
Ideal for indoor dry and damp locations, the OTi 25W Compact supports universal input voltage from 120–277V AC, ensuring broad compatibility. Its compact F-style or J-style housing simplifies installation in tight spaces, while Class P UL listing, thermal protection, and comprehensive overload, over-voltage, short-circuit, and over-temperature protections guarantee safe and reliable operation. Soft start, dimming synchronization, and constant lumen output features make this driver a dependable choice for commercial and architectural designers seeking compact, efficient, and long-lasting LED control solutions.
Key Features
-
Programmable Output Current: Adjustable 150–1250mA in 1mA increments for precise fixture control.
-
0–10V Isolated Dimming & Dim-to-Off: Flicker-free dimming from 1–100% for professional lighting setups.
-
Compact High-Efficiency Design: Supports up to 25W in F-style or J-style housings for easy installation.
-
Thermal & Overload Protection: NTC LED thermal foldback, over-voltage, short-circuit, and over-temperature protections.
-
Optional AUX Output: Configurable 12V/20V/24V power for auxiliary circuits or control modules.
Specifications
Specifications
| Attribute | Specification |
|---|---|
| Product Code | OTi 25W Compact |
| Brand | Acuity eldoLED OPTOTRONIC |
| Driver Type | Constant-Current Programmable |
| Fixture Type | LED |
| Input Voltage | 120–277V AC |
| Frequency | 50–60Hz |
| Power Factor | >0.9 @ Full Load |
| Efficiency | ≈87% @ 120V, ≈86% @ 277V |
| Input Current | 0.28A @ 120V, 0.12A @ 277V |
| THD | <20% @ Full Load |
| Max Output Power | 25W |
| Programmable Output Current | 150–1250mA |
| Output Voltage Range | 8–55VDC |
| Ripple Current | <20% |
| Dimming | Isolated 0–10V, 1–100%, Dim-to-Off |
| AUX Output | 12V / 20V / 24V (optional, 1W max) |
| NTC Input | ~25kΩ for LED thermal foldback |
| Startup Time | <0.5 sec (CA Title 24 Compliant) |
| Standby Power | <1W |
| Operating Temperature | -30°C to +50°C |
| Max Case Temperature (Tc) | 90°C (80°C for 50k hrs) |
| Storage Temperature | 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 | UL Listed Class P, Dry/Damp Locations, FCC Part 15 Class A, RoHS Compliant, NEMA SSL 1-2010 Transient Protection (2.5kV), CA Title 24 Startup Compliant |
| Warranty | 5-Year Limited (at Tc ≤80°C) |
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.



