--- product_id: 575978582 title: "eldoLED | 2743W5 OPTOTRONIC OTi 85W Programmable Linear LED Drive | Replacement for Osram 57420 | Oti85/120-277/2A3/DIM-1 L" brand: "lls" price: "SAR 203" currency: SAR in_stock: true url: https://www.desertcart.com.sa/products/575978582-eldoled-2743w5-optotronic-oti-85w-programmable-linear-led-drive-replacement store_origin: SA region: Saudi Arabia --- # 85W high power output 16.73-inch sleek linear design True 1% dimming precision eldoLED | 2743W5 OPTOTRONIC OTi 85W Programmable Linear LED Drive | Replacement for Osram 57420 | Oti85/120-277/2A3/DIM-1 L **Brand:** lls **Price:** SAR 203 **Availability:** ✅ In Stock ## Summary > 💡 Illuminate smarter, dim deeper, save bigger. ## Quick Answers - **What is this?** eldoLED | 2743W5 OPTOTRONIC OTi 85W Programmable Linear LED Drive | Replacement for Osram 57420 | Oti85/120-277/2A3/DIM-1 L by lls - **How much does it cost?** SAR 203 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/575978582-eldoled-2743w5-optotronic-oti-85w-programmable-linear-led-drive-replacement) ## Best For - lls enthusiasts ## Why This Product - Trusted lls brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Energy-Smart DIM-to-OFF:** Smoothly transition lights from dim to off, cutting energy waste without extra gear. - • **Seamless Synchronization:** Synchronize ON/OFF and dimming across multiple fixtures for flawless ambiance control. - • **Precision Dimming Control:** True 1% dimming lets you tailor lighting intensity with architectural-grade accuracy. - • **Built-in Wiring Protection:** Visual alerts prevent costly mis-wiring errors during installation—peace of mind guaranteed. - • **Consistent Brightness, Longer Life:** Constant lumen maintenance ensures steady light output and maximized energy efficiency over time. ## Overview The eldoLED OPTOTRONIC OTi 85W Programmable Linear LED Driver is a high-efficiency, dimmable LED driver designed for indoor architectural lighting. It supports true 1% dimming, synchronized control of multiple luminaires, and features DIM-to-OFF energy-saving technology. With built-in wiring protection and constant lumen maintenance, it ensures reliable, consistent brightness and long-lasting performance. This model replaces the OSRAM 57420, delivering 85 watts of power through a sleek 16.73-inch linear form factor. ## Description eldoLED | 2743W5 OPTOTRONIC OTi 85W Programmable Linear LED Drive | Replacement for Osram 57420 | Oti85/120-277/2A3/DIM-1 L ## Features - Synchronize ON/OFF Timing and Dimming Controls: This feature meets efficacy requirements and ensures consistent dimming levels across multiple luminaires and individual luminaires that require multiple drivers. - True 1% Dimming: Architectural LED drivers support 1% dimming across the entire driver programmable output current range for True 1% dimming. For example, if a driver is programmed to 300mA, then at 1% dimming, output current would be 3mA. - DIM-to-OFF: DIM-to-OFF enables luminaires to smoothly transition from DIM-to-OFF and save energy without needing additional control equipment to turn off the fixture. Select architectural-grade LED drivers offer DIM-to-OFF and have a programmable AUX power output option to power and extend DIM-to-OFF capability to fixture-integrated sensors and controls. - Dimming Interface Protection: The dimming circuit in an OPTOTRONIC linear driver have protection against AC line voltage (120-277Vac) in the event that the driver is mis-wiring during field installation. When a mis-wired driver is powered up, the driver will provide a visual signal that indicates a potential wiring error. - Constant Lumen Maintenance: The Constant Lumen Maintenance feature of the OTi 85W helps to maintain the required lumen output of the fixture at a constant level throughout its lifetime. In general LED’s lumen output will depreciate over time and in order to maintain sufficient light level towards the end of lifetime, the LED’s are driven at high current initially and will result in more energy consumption. The constant lumen maintenance will give the flexibility to drive the LEDs at optimal driving current throughout its lifetime. This helps in energy savings, constant light output and enhanced reliability of the system. - Replacement for OSRAM: Replacement for OSRAM 57420 model LED driver. *2743W5 57420-Oti85/120-277/2A3/DIM-1 L ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | LLS | | Light Type | LED | | Special Feature | Dimmable | | Wattage | 85 watts | | Bulb Base | E26 | | Incandescent Equivalent Wattage | 6E+1 Watts | | Voltage | 1.2E+2 Volts (AC) | | Unit Count | 1.0 Count | | Number of Items | 1 | | Shape | Rectangular | | Material | copper | | Model Name | OPTOTRONIC® OTi 85W Programmable Linear LED Driver | | Indoor/Outdoor Usage | Indoor | | Power Source | Corded Electric | | Power Consumption | 85 Watts | | Item Package Quantity | 1 | | Light Source Type | Led | | Light Source Wattage | 85 Watts | | Accepted voltage frequency | 100 to 120 Volts and 60 Hertz | | Control Method | Remote | | Average Life | 50000 Years | | White Brightness | 493700 Lumens | | Efficiency | 5882.35 lumens/watt | | Manufacturer | eldoLED | | Item Weight | 1 pounds | | Product Dimensions | 16.73 x 1.15 x 1 inches | | Item model number | 57420 | | Assembled Height | 1 inches | | Assembled Length | 16.73 inches | | Assembled Width | 1.15 inches | | Color | White | | Special Features | Dimmable | | Wattage | 85 Watts | ## Product Details - **Brand:** LLS - **Light Type:** LED - **Special Feature:** Dimmable - **Wattage:** 85 watts - **Bulb Base:** E26 ## Images ![eldoLED | 2743W5 OPTOTRONIC OTi 85W Programmable Linear LED Drive | Replacement for Osram 57420 | Oti85/120-277/2A3/DIM-1 L - Image 1](https://m.media-amazon.com/images/I/41xwRcbWNOL.jpg) ## Frequently Bought Together - eldoLED | 2743W5 OPTOTRONIC OTi 85W Programmable Linear LED Drive | Replacement for Osram 57420 | Oti85/120-277/2A3/DIM-1 L - 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 *2743W7 OPTOTRONIC 85W Constant Current 0-10V Dimmable LED Driver, Programmable Linear OTi85/120‐277/2A3 DIM-1 L (Osram 57422) … --- ## 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.com.sa/products/575978582-eldoled-2743w5-optotronic-oti-85w-programmable-linear-led-drive-replacement](https://www.desertcart.com.sa/products/575978582-eldoled-2743w5-optotronic-oti-85w-programmable-linear-led-drive-replacement) --- *Product available on Desertcart Saudi Arabia* *Store origin: SA* *Last updated: 2026-05-08*