--- product_id: 235300791 title: "57351 Optotronic 40W 120/277V AC 50/60Hz Constant Current Dimmable Compact LED Driver OTi 40W/120-277/1A4 DIM-1" brand: "osram" price: "219.33 DT" currency: TND in_stock: true category: "Osram" url: https://www.desertcart.tn/products/235300791-57351-optotronic-40w-120-277v-ac-50-60hz-constant-current store_origin: TN region: Tunisia --- # 40W max power output 120-277V universal input 1mA step dimming precision 57351 Optotronic 40W 120/277V AC 50/60Hz Constant Current Dimmable Compact LED Driver OTi 40W/120-277/1A4 DIM-1 **Brand:** osram **Price:** 219.33 DT **Availability:** ✅ In Stock ## Summary > 💡 Elevate your lighting game with precision power and pro-grade programmability! ## Quick Answers - **What is this?** 57351 Optotronic 40W 120/277V AC 50/60Hz Constant Current Dimmable Compact LED Driver OTi 40W/120-277/1A4 DIM-1 by osram - **How much does it cost?** 219.33 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/235300791-57351-optotronic-40w-120-277v-ac-50-60hz-constant-current) ## Best For - osram enthusiasts ## Why This Product - Trusted osram brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Advanced OEM Features:** Includes constant lumen output, thermal protection, soft start, and end-of-life indicators to future-proof your lighting setup. - • **Safe & Smart Operation:** UL Class 2 certified with built-in line voltage protection on dimming wires for worry-free, reliable performance. - • **Precision Dimming Mastery:** Custom programmable 400-1400mA output in 1mA increments for perfect LED matching and ultimate lighting control. - • **Compact & Installation Friendly:** Slim 5"x2.4"x1.2" form factor with versatile mounting options (F-style or J-style) for sleek, professional installations. - • **Universal Voltage Compatibility:** Seamlessly operates across 120-277VAC at 50/60Hz, ensuring hassle-free integration in diverse environments. ## Overview The OSRAM 57351 OPTOTRONIC OTi40W/120-277/1A4 DIM-1 is a compact, programmable 40W constant current LED driver featuring universal 120-277V input, ultra-fine 1mA dimming steps, and UL Class 2 safety certification. Designed for professional-grade lighting control, it supports advanced OEM functions like thermal protection, constant lumen output, and soft start, all packed into a sleek, easy-to-install form factor ideal for downlights, troffers, and wall washers. ## Description OPTOTRONIC Programmable Compact LED DriversOSRAM 57351 OPTOTRONIC OTi40W/120-277/1A4 DIM-1 40W Constant Current, 0-10V Dimmable LED DriverProduct FeaturesProgrammable Features: Output currentDimming levelDim-to-offSoft StartLED thermal protectionVaux (12/20/24V)Constant lumen outputEnd-of-life indicatorInput Voltage: 120-277V (+/- 10%)Frequency Range: 50-60 Hz (+/- 5%)Max. Output Power (W): 40WDimming Control: 0-10V (Isolated)Dimming Range: 1-100%Output Voltage (VDC): 8-55VDCOutput Current (mA): 400-1400mA (1mA Step), Default 700mAProduct Dimensions (L x W x H): 5.0" x 2.4" x 1.2"Product Weight: 7.8oz Quantity: 1 UL Environmental Rating: Dry and DampProduct Family FeaturesUniversal input voltage - 120–277VAC 50/60HzUL Class 2 output for safe operationProtection against line voltage on 0-10 V dimming wiresAUX output models availableCustom programmable with 1mA resolution to perfectly match LED load and maximize performanceProgramming does not require powering up or connecting the power supply to AC line voltageWide output current and voltage rangeAvailable in dimming to 1% with 0–10 V dimmersIntegrated OEM programmable features include: constant lumen maintenance, end-of-life indication, LED thermal protection, Vaux (12V/20V/24V), soft start, and dim-to-offAvailable with mounting feet (F-style) or PEM studs (J-style) to simplify installationConforms UL SREC for NTC based thermal protectionAreas of ApplicationDownlights, In-grade fixtures, Recessed troffer, Wall Washing ## Features - Universal input voltage - 120–277VAC 50/60Hz - Pout = 40W, Vout = 8-55VDC, Iout = 400-1400mA (1mA Step), Default 700mA - UL Class 2 output for safe operation - Protection against line voltage on 0-10 V dimming wires - Custom programmable with 1mA resolution to perfectly match LED load and maximize performance ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08JVMDDH5 | | Best Sellers Rank | #133,341 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #169 in Lighting Low Voltage Transformers | | Brand Name | OSRAM | | Current Rating | 700 Milliamps | | Customer Reviews | 4.5 4.5 out of 5 stars (67) | | Global Trade Identification Number | 04052899532762 | | Item Dimensions D x W x H | 5"D x 2.4"W x 1.2"H | | Item Weight | 7.8 Ounces | | Manufacturer | OSRAM | | Maximum Frequency | 60 Hz | | Minimum Frequency | 50 Hz | | Model | OPTOTRONIC OTi40W/120-277/1A4 DIM-1 | | Mounting Type | Other (F-style or J-style) | | Part Number | 57351 | | Power Source | Corded Electric | | Specification Met | UL | | Unit Count | 1.0 Count | ## Product Details - **Brand:** OSRAM - **Current Rating:** 700 Milliamps - **Mounting Type:** Other (F-style or J-style) - **Power Source:** Corded Electric - **Product Dimensions:** 5"D x 2.4"W x 1.2"H ## Images ![57351 Optotronic 40W 120/277V AC 50/60Hz Constant Current Dimmable Compact LED Driver OTi 40W/120-277/1A4 DIM-1 - Image 1](https://m.media-amazon.com/images/I/71ficYA7JFL.jpg) ## Questions & Answers **Q: Can I use with in wall Triac Lutron dimmer?** A: Hello, You would need a compatible dimmer, something that works with 0-10volt. Regards **Q: Will this fit my old CDL040W-0700-56, 120Vac/450mA 60Hz?** A: Here are the LED Driver Specifications: Type: Constant Current LED Driver Input Voltage: 120-277V (+/- 10%) Frequency Range: 50-60 Hz (+/- 5%) Max. Output Power (W): 40W Dimming Control: 0-10V (Isolated) Dimming Range: 1-100% Output Voltage (VDC): 8-55VDC Output Current (mA): 400-1400mA (1mA Step), Default 700mA Thank you, SIRS-E Team ## Frequently Bought Together - Osram 57351 Optotronic 40W 120/277V AC 50/60Hz Constant Current Dimmable Compact LED Driver OTi 40W/120-277/1A4 DIM-1 - OSRAM 57433 Optotronic 30W 120/277V AC 50/60Hz Constant Current Dimmable LED Driver OTi 30/120-277/1A0 DIM-1 L G2 - Osram 57452-50 watt 120/277 Volt 50-60Hz Dimmable LED Driver (OTi50/120-277/1A4/DIM-1/L G2 Osram Optotronic LED Driver) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/235300791-57351-optotronic-40w-120-277v-ac-50-60hz-constant-current](https://www.desertcart.tn/products/235300791-57351-optotronic-40w-120-277v-ac-50-60hz-constant-current) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-01*