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Pack of 5 - eldoLED *2743VY OPTOTRONIC 25W 120V-277V AC 50/60Hz Constant Current Dimmable Compact LED Driver OTi 25W/120-277/1A2 DIM-1 - Replacement/Compatible with Osram 57347
Brand: eldoLED
Condition: Used
$5456
$10995
-51% Save $5539
Updated: 2 days ago
Description
Universal input voltage - 120–277VAC 50/60Hz
UL Class 2 output for safe operation
Protection against line voltage on 0-10 V dimming wires
AUX output models available
Custom programmable with 1mA resolution to perfectly match LED load and maximize performance
Replacement/Compatible with Osram 57347
eldoLED *2743VY OPTOTRONIC 25W Constant Current 0-10V Dimmable LED Driver, Programmable Compact OTi25W/120-277/1A2 DIM1
The eldoLED *2743VY OPTOTRONIC OTi25W/120-277/1A2 DIM1 is a compact, high-performance constant current LED driver designed for architectural-grade lighting applications. Part of the renowned OPTOTRONIC family by Osram, this 25W programmable driver offers unmatched flexibility, energy efficiency, and advanced dimming control to meet the demands of modern lighting design. Engineered with a universal input voltage range of 120-277VAC, this driver features field-programmable output currents and true 0-10V dimming down to 1%, allowing lighting designers to fine-tune light levels with exceptional precision. This capability ensures smooth, flicker-free dimming and consistent performance across an entire lighting installation—critical for architectural, retail, hospitality, and high-end commercial applications. The DIM-to-OFF functionality enables seamless transitions from low light levels to complete off states, creating a more natural lighting experience. Additionally, the driver includes an AUX power output option to support fixture-integrated sensors and controls, making it ideal for intelligent lighting systems. Its synchronized ON/OFF timing and dimming control ensure uniform performance across multiple fixtures, helping meet both aesthetic and energy code requirements. Compact, programmable, and UL Class 2 rated, the *2743VY driver brings Osram's trusted reliability and eldoLED's precision engineering together in one efficient solution—perfect for OEMs and spec-grade lighting projects demanding top-tier performance.Product Features
- Programmable Features:
- Output current
- Dimming level
- Dim-to-off
- Soft Start
- LED thermal protection
- Vaux (12/20/24V)
- Constant lumen output
- End-of-life indicator
- Input Voltage: 120V-277V (+/- 10%)
- Frequency Range: 50-60 Hz (+/- 5%) Lighting Accessories
- Max. Output Power (W): 25W
- Dimming Control: 0-10V (Isolated)
- Dimming Range: 1-100%
- Output Voltage (VDC): 8-55VDC
- Output Current (mA): 150-1250mA (1mA step) - 500mA default
- Product Dimensions (L x W x H): 5.0" x 2.4" x 1.2"
- Product Weight: 7.9oz
- UL Environmental Rating: Dry and Damp
Key Features & Benefits
- Architectural-grade features include:
- True 1% dimming
- Synchronized ON/OFF and dimming control
- DIM to OFF
- Dimming interface protection
- Custom programmable with 1mA resolution to perfectly match LED load and maximize performance
- Integrated OEM programmable features include:
- Constant lumen maintenance
- End-of-life indication
- LED thermal protection
- Soft start
- Programming does not require powering up or connecting the power supply to AC line voltage
- Available optional auxiliary output to power 12V, 20V, and 24V low power applications
- Familiar standard industry, housing – 5.0" x 2.4" x 1.1" (L x W x H)
- Wide output current and voltage range
- Available with mounting feet (F-style) or PEM studs (J-style) to simplify installation
- Universal Input Voltage – 120-277Vac 50/60Hz – 347Vac 50/60Hz
- UL Class 2 output for safe operation
Areas of Application
- Architectural
- Downlights
- In-grade fixtures
- Recessed troffer
- Wall washing
Sold by
Amazon Warehouse
Official Amazon outlet for open-box & returned items
- Backed by Amazon's A-to-Z Guarantee
- 30-day return policy
- Ships from Amazon fulfillment centers
- Price verified on Amazon
Product Details
- SKU:
- awhd-us-b0bvghvhgh
- Model:
- OPTOTRONIC
- Country:
- US
- ASIN:
- B0BVGHVHGH
Shopping Smarter
Common questions about buying open-box and refurbished.
Why buy refurbished or open-box?
Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $55 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.
What's the difference between open-box and refurbished?
Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.
Why use OpenBoxFox?
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Is it safe to buy refurbished?
Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.
