--- product_id: 367834196 title: "57431 Optotronic 20W 120/277V AC 50/60Hz Constant Current Dimmable LED Driver OTi 20/120-277/700 DIM-1 L G2" brand: "osram" price: "185.59 DT" currency: TND in_stock: true category: "Osram" url: https://www.desertcart.tn/products/367834196-57431-optotronic-20w-120-277v-ac-50-60hz-constant-current store_origin: TN region: Tunisia --- # 20W max output power Programmable current 150-700mA in 1mA steps 0-10V dimmable, 1-100% range 57431 Optotronic 20W 120/277V AC 50/60Hz Constant Current Dimmable LED Driver OTi 20/120-277/700 DIM-1 L G2 **Brand:** osram **Price:** 185.59 DT **Availability:** βœ… In Stock ## Summary > πŸ’‘ Illuminate smarter, dim smoother, and future-proof your space with OSRAM’s Optotronic LED driver! ## Quick Answers - **What is this?** 57431 Optotronic 20W 120/277V AC 50/60Hz Constant Current Dimmable LED Driver OTi 20/120-277/700 DIM-1 L G2 by osram - **How much does it cost?** 185.59 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/367834196-57431-optotronic-20w-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 - β€’ **Slim & Versatile Design:** Compact form factor fits easily into recessed troffers and linear fixtures, powering indirect or direct lighting setups. - β€’ **Seamless Dimming Control:** Smooth 0-10V dimming from 1% to 100% ensures the ideal ambiance for any professional space. - β€’ **Precision Programmability:** Fine-tune output current with 1mA resolution for perfect LED matching and peak efficiency. - β€’ **Built-in Safety & Longevity:** UL Class 2 output, thermal protection, and end-of-life indicators safeguard your investment and reduce downtime. - β€’ **Universal Voltage Compatibility:** Operates flawlessly across 120-277VAC at 50/60Hz, simplifying installation in diverse environments. ## Overview The OSRAM 57431 Optotronic OTi20/120-277/700 DIM-1 L G2 is a 20W constant current LED driver featuring programmable output current (150-700mA), universal 120-277VAC input, and ultra-smooth 0-10V dimming down to 1%. Designed for professional lighting applications, it offers advanced thermal protection, end-of-life indication, and a slim profile for versatile installation in dry or damp environments. ## Description OPTOTRONIC Linear Programmable LED DriversOSRAM 57431 OPTOTRONIC OTi20/120-277/700 DIM-1 L G2 20W Constant Current, 0-10V Dimmable LED DriverProduct FeaturesProgrammable Features: Output currentDimming levelDim-to-offSoft StartLED thermal protectionAuxiliary output voltageConstant lumen outputEnd-of-life indicatorInput Voltage: 120-277V (+/- 10%)Frequency Range: 50-60 Hz (+/- 10%)Max. Output Power (W): 20WDimming Control: 0-10V (Isolated)Dimming Range: 1-100%Output Voltage (VDC): 10-55VDCOutput Current (mA): 150-700mA (1mA step), Default 350mAProduct Dimensions (L x W x H): 11.00" x 1.14" x 1.00"Product Weight: 8.3oz Quantity: 1 UL Environmental Rating: Dry & DampProduct Family FeaturesOEM Programmable with 1mA resolution to perfectly match LED load and maximize performanceIntegrated OEM programmable features include:Constant lumen maintenanceEnd of life indicationLED thermal protectionProgramming doesn't require powering up or connecting the power supply to AC line voltageSpecification grade dimming down to 1% or 10% on 0-10V dimmersAvailable optional auxiliary output to power 12 V, 20 V, and 24 V low power applicationsSlim form factorsInput voltage:Universal 120-277 VAC 50/60Hz347 VAC 50/60 HzUL Class 2 output for safe operation, Class PAreas of ApplicationIndirect/directLinearRecessed troffer ## Features - OPTOTRONIC Linear Programmable LED Driver - Constant Current, 0-10V Dimmable LED Driver - Input Voltage: 120-277VAC 50/60 Hz - Pout: 20W, Vout: 10-55VDC, Iout: 150-700mA - UL Class 2 output for safe operation ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09JBDNCWF | | Best Sellers Rank | #433,980 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #651 in Lighting Low Voltage Transformers | | Brand Name | OSRAM | | Current Rating | 700 Milliamps | | Customer Reviews | 5.0 5.0 out of 5 stars (2) | | Item Weight | 8.3 Ounces | | Manufacturer | OSRAM | | Maximum Frequency | 60 Hz | | Minimum Frequency | 50 Hz | | Model | 57431 | | Part Number | 57431 | | Power Source | Corded Electric | | Specification Met | UL | ## Product Details - **Brand:** OSRAM - **Current Rating:** 700 Milliamps - **Item Weight:** 8.3 Ounces - **Power Source:** Corded Electric - **Specification Met:** UL ## Images ![57431 Optotronic 20W 120/277V AC 50/60Hz Constant Current Dimmable LED Driver OTi 20/120-277/700 DIM-1 L G2 - Image 1](https://m.media-amazon.com/images/I/61T+0BS-LDL.jpg) ## Frequently Bought Together - Osram 57431 Optotronic 20W 120/277V AC 50/60Hz Constant Current Dimmable LED Driver OTi 20/120-277/700 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) - eldoLED *2743X3 OPTOTRONIC Programmable Linear 50 Watts Constant Current LED Driver, 0-10V Dimmable OTi50/120-277/1A4 DIM-1 L G2 120/277Vac White --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/367834196-57431-optotronic-20w-120-277v-ac-50-60hz-constant-current](https://www.desertcart.tn/products/367834196-57431-optotronic-20w-120-277v-ac-50-60hz-constant-current) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-27*