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single output 277vac led light power supply high efficiency 300w led driver

Basic Info

Model No.: SMT-024-300VTH

Product Description

single output 277vac led light power supply high efficiency 300w led driver

Product Description


  1. AC-DC Triac Dimmable LED Power Supply
  2. Universal AC input (100~ 305VAC) frequency range:47~63Hz
  3. Output:  24v  @ 12.5a   300w
  4. Ambient temp.:-20 degree~50 degree
  5. Efficiency > 85%
  6. PF>0.98
  7. Product dimension(L x W x H): 260*103*45mm
  8. IP rate:  IP20
  9. cover material: Aluminum
  10. 7 years warranty  (We promise to replace new ones to you if there is any defective happen during the warranty period) 



·Output constant voltage
·Input voltage range 110-277VAC
·Built-in PFC function, PF> 0.92
·E fficiency > 87% / load:0~100%
·Protections:short circuit/over voltage/over heat
·IP20 design for indoor installations
·Cooling by free air convection
·Work with leading edge and trailing edge triac dimmers available
·PWM output, does not change the color index
·Full protection aluminum housing, for dry, damp, wet location
·Strong compatibility, flicker-free dimming
·Suitable for LED lighting and moving sign applications
··Compliance to worldwide safety regulations for lighting




Our products are widely used in various industries, such as

  1. outdoor LED illuminating lights
  2. LED Neon
  3. LED City Decoration
  4. LED Lighting Advertising
  5. LED Display
  6. Safety Protection Apparatus
  7. Telecommunications
  8. Networks
  9. Vehicle Lights
  10. Controller Panels, etc.

single output 277vac led light power supply high efficiency 300w led driver


Simple Connection Diagram


Related products

What kind of LED Driver/Power Supply We do??                                                                                                      

We specialized in constant voltage & current LED drivers, 010v/triac/DALI dimmable led drivers, enclosure power suppliers, power adapters.

Triac CC&CV Dimmable Series

0-10V CC&CV Dimmable Series

DALI CC&CV Dimmable Series

Constant Voltage Series



Enclosue Power Supply

Constant Current Series


Packaging & Shipping

Company informations

Smarts Electronics, the led driver manufacturer located in Quanzhou, 7 years trade experience in Alibaba.

We can supply 7 kinds of led drivers & led power supply. 

1.Constant Voltage LED Driver;

2.Constant Current LED Driver;

3.Triac CC&CV Dimmable LED Driver

4.0-10v  CC&CV Dimmable LED Driver

5.DALI CC&CV Dimmable LED Driver

6.Power Adapter

7.Switching Power Supply

All of our drivers are got UL/cUL CE ROHS listed .OEM Welcome.


Our led drivers are widely used for:

1.Indoor LED illuminating lights

2.LED Neon, LED urban Decoration

3.LED Lighting Advertising,LED Display

4.Safety Protection Apparatus

5.Telecommunications, Networks

6.Vehicle Lights, Controller Panels


Our team:


Our factory:




Our Services

why choose us??

1.    We are UL/cUL audited LED drivers/power supplies enterprise in China.

2.  Alibaba assessed 6 years Gold Supplier and more than 10 years LED industrial experience.

       it will guarantee your order 100% safe.

3.   Price is negotiable if you have large quantity demand

4.   100% QC inspection Before Shipping

5.    Best Quality & Best Service with Competitive price

6.   Shipping will be the most economical for you and freight cost is informed in advance for your consideration.

       decision for the shipping terms will be made according to your requirements

7.   Samples will be ready within 7 working days.

8.   We have our engineer team, if you have any question about your LED applications, let  us know freely,

      we will  give you the best solution.
9.    Our trade manager is online 12 hours. and we will reply your inquiry within 8 hours.

10.  OEM design & OEM packing welcom.

11.  Samples will be ready within 7 working days.



>Q1.             What's type power supply do you have?

Answer:      We specialized in constant voltage & current LED drivers,

                   0- 10v/triac/DALI dimmable led drivers, enclosure power suppliers, power adapters


>Q2.             What's shipping mode can we choose?

Answer:     1.FedEx/DHL/UPS/TNT/Express for samples;

                   2. By Air or by Sea for batch goods, for FCL; Airport/ Port receiving;

                   3. Customers specifying freight forwarders or negotiable shipping method


>Q3.             What's the MOQ?

Answer:      Our MOQ is 500pcs, but we accept your trail order/small order, no problem.


>Q4.            What can you do if the product is broken?

Answer:      We promise to replace new ones to you if there is any defective happen

                   during the warranty period, but we need pictures or video to prove the defective 

                   comes from our quality problem


>Q5.             How about the protection of product?

Answer:      Most of our products have protection of short-circuit. overload,
                   over voltage, over current and reserve polarity. About the specific product, 

                   please consult our salesstuff.


>Q6.              How about the transportation?

Answer:                         For small order,express will be best.And for bulk order,sea ship way is best but take much time. 

                    For urgent orders,we suggest via air to airport plus our ship partner send to your door. 

                    We will cooperate with your choice.


>Q7.              What's the Payment do you have?

Answer:       To assure you the maximum comfort and satisfaction, Currently, you can pay via T/T, L/C, 

                    WESTERN UNION, PAYPAL. More payment options will be added in the near future




Product Categories : 277V CC/CV LED Driver > 277V Constant Voltage LED Driver

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