
274A3S Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $89.95 | Condition is New – Open box, (4) eldoLED 274A3S OPTOTRONIC 40W Constant Current Dimmable LED Driver *PI, FREE SHIPPING | ![]() |

The ELDOLED A274A3S Optotronic 40W Dimmable LED Driver PI is a versatile and advanced LED driver designed for use with various dimmable LED lighting applications. This driver is engineered with the latest optotronic technology, which provides precise dimming control and high reliability.
The ELDOLED A274A3S is a constant voltage driver, capable of delivering a dimmable output voltage ranging from 12V to 50V. With a maximum output power of 40W, this driver is suitable for powering LED strips or individual LED lamps with a total power consumption within the specified range. The driver is also compatible with a wide range of dimmer types, including trailing edge, leading edge, and phase control dimmers.
One of the key features of this driver is its impressive dimming performance. It offers smooth, flicker-free dimming, ensuring a comfortable and aesthetically pleasing lighting experience. The driver also supports "dim to off" functionality, allowing the LEDs to be completely turned off when the dimmer is set to the minimum position.
The ELDOLED A274A3S Optotronic LED Driver PI is designed with high-quality components, ensuring a long service life and reliable operation. It features overvoltage, overcurrent, and short-circuit protection, safeguarding your LED lighting system against potential damage.
Installation of the ELDOLED A274A3S driver is straightforward. It comes with a PCB mounting design, allowing it to be easily mounted onto a heat sink or a suitable surface using provided mounting holes. The driver also features a screw terminal block for easy and secure wiring of the input and output connections.
In summary, the ELDOLED A274A3S Optotronic 40W Dimmable LED Driver PI is an advanced, versatile, and reliable LED driver that offers precise dimming control, compatibility with various dimmer types, and impressive dimming performance. Its high-quality components, robust protection features, and easy installation make it an ideal choice for a wide range of LED lighting applications.
The Optotronic 40W Dimmable LED Driver PI (model ELDOLED A274A3S) is a power supply component designed for use with dimmable LED lighting systems. This driver supports both leading-edge and trailing-edge dimming control and is capable of delivering up to 40 watts of power. Here are some pros and cons that may help you decide whether or not to purchase this LED driver:
Pros:1. Dimmable Capability: The driver supports both leading-edge and trailing-edge dimming, making it compatible with a wide range of dimming control systems.
2. High Power Output: With a maximum power output of 40 watts, this driver can support a significant number of LED lights.
3. Energy Efficient: As a LED driver, this component is designed to be energy efficient and can help reduce energy consumption in lighting applications.
4. Compact Design: The driver has a small form factor, making it easy to install in tight spaces.
5. High Reliability: Optotronic is a well-known brand in the LED lighting industry, and their products are known for their high reliability and durability.
Cons:1. Limited Compatibility: While the driver supports both leading-edge and trailing-edge dimming, it may not be compatible with all dimming systems. It is important to check the specific dimmer compatibility before making a purchase.
2. Higher Cost: Compared to non-dimmable LED drivers, dimmable drivers tend to be more expensive due to their added functionality.
3. Limited Input Voltage Range: The driver is designed to operate on a relatively narrow input voltage range (85-264V AC), which may limit its use in certain applications.
In conclusion, the Optotronic 40W Dimmable LED Driver PI (ELDOLED A274A3S) offers several advantages including compatibility with dimming systems, high power output, energy efficiency, compact design, and high reliability. However, it also has some limitations such as limited compatibility with certain dimming systems, higher cost compared to non-dimmable drivers, and a relatively narrow input voltage range.
If you require a dimmable LED driver for your lighting application and are compatible with the input voltage range and dimming system specifications of this driver, then it can be a good investment. However, it is important to carefully evaluate your specific requirements and consider alternative options before making a purchase.
Details:
specifications faclighting:
- brand: Eldoled
- mpn: 274a3s
- part type: Driver
- unit type: Unit
seller faclighting:
- city: pell city, alabama
- rating: 100.0%
- # reviews: 2129
offer faclighting:
- availability: in stock
- in stock #: 1
- started: april 4, 2026
- options: ship-to-home
- sold #: 7
- price: $89.95
- item condition: New – Open box
returns faclighting:
- time: 30 days
- method: money back
- policy: returns accepted
- paid by: seller
payments faclighting:
- credit card: diners-club
- other
- wallet: paypal
general faclighting:
- category: Business & Industrial > Maintenance Safety > Facility > Lights Lighting
shipping faclighting:
- carrier: usps
- class: standard
- transit: 4-9 days
- service: usps ground advantage
- type: calculated
Grouped With:
- -2743UP-51522-: DRIVER, Eldoled
- 79377-Z: DRIVER, Eldoled
- 566-L: DRIVER, Eldo Led
- 57511: DRIVER, Eldoled
- OTI50-120-277-1A4-DIM-1L-G2: , Eldoled
- 888791525649: LIGHTING SENSOR SWITCH DRIVER CONTROL, Lithonia Lighting
- 274A1J: DRIVER, Osram
- 1061-S: , Eldoled
- SL22S-M1Z0A1: INDOOR DRIVER, Eldoled
- 888791319347: DRIVER CONTROL, Nlight
- LIN211D1-LN: DRIVER, Eldoled

