U.S. Energy Agency tests show: LED wall washer is competitive

The US Energy Agency (DOE) recently released the 18th round of Caliper test results. Test results show that, compared with traditional lamps, the embedded LED wall washer is quite competitive, but it still needs to be improved in terms of efficiency and indicators.

The object of this round of testing is 17 embedded LED wall washer lights. The physical properties of these products vary greatly, but they perform similarly in terms of light output and intensity distribution. The light output is basically the same as 42W fluorescent lamp or 35W ceramic metal halide lamp.

This round of testing lasted no more than 1800 hours. The measured efficiency of the 17 embedded LED wall washer ranges from 23 to 64 lm / W, with an average efficiency of 42 lm / W. Only three models exceed 52lm / W. Only 9 of them meet the minimum performance requirements of DesignLights Alliance (DLC) qualified products, which is 40lm / W; only 7 lamps meet the current Energy Star spotlight 42lm / W energy efficiency requirements. The efficiency of the wall washer of any light source is low, but there is still much room for improvement in the efficiency of LED wall washer.

Figure: The relationship between the measured lamp efficacy and the amount of light output

In terms of color rendering index, the color rendering index of 17 embedded LED wall wash lamps is between 76-92, 13 of which exceed 80, which is acceptable for use in buildings. The color rendering index needs to be improved in the future.

In addition, the performance claimed by the manufacturer is also different from the actual one. There are 4 lights whose light output is less than 90% of their publicity. Among them, the light output of the two lamps is only 14% and 65% of the declared value. Although the amount of light is smaller than the declared value, the difference is within 10%; another one exceeds the declared value by 14%.


LED Linear High Bay Lights Driver


Fahold, a 8 year old company brings light power to your life by illuminating your offices, factories, warehouses, shopping malls, airports, etc. with its high quality LED Troffer lighting products and solutions.With global manufacturing standards and various certifications including CE,TUV, UL and FCC, our lighting products are sold in domestic market and are exported to various international markets including US, UK, France, Germany, Australia, Africa, Korea etc. We offer a wide range of Lighting source for Led Lighting Solutions which includes LED TrofferLighting or System, , LED Lams, LED Panel etc. At the same time Maximize beauty of your workplace with our powerful driver to drive Warehouse Lighting, Workshop Lighting, Supermarket Lighting and Factory lighting solutions. We have skilled engineers to answer all your questions and enquiries and provide all-round solutions basis on your project(s) and provide technical supporting.
Application: Specifically for led Troffer light,AC100-277V/347V,1-1.5A output current,Iron box casing, support 0-10V/PWM/RX dimming, High efficiency and PF value, Pass the UL/FCC/Class P certified for North America market.


Parameter:

Input voltage:100-277V

Output voltage:25-40V

Current:1100mA/1500mA

PF:>0.9

THD:<15%

Size style: Iron box, long slimline. 

Dimming:0-10V / PWM / RX / DALI.
>=50000hours, 3-5 years warranty.



LED Troffer driver



What's the benefits of Fahold led Troffer lights driver?

  • Standard Linear Lighting
  • Cost-effective light-line solution for industry,commercial and other applications
  • Good quality of light with high lumen output to meet different requirements
  • Easy to order and install,requiring less time,reducing packaging waste and complexity
  • Flexible solution


FAQ:
Question 1:Are you a factory or a trading company?
Answer: We are a factory.
Question 2: Payment term?
Answer: 30% TT deposit + 70% TT before shipment,50% TT deposit + 50% LC balance, Flexible payment
can be negotiated.
Question 3:  What's the main business of Fahold?
Answer: Fahold focused on LED controllers and dimmers from 2010. We have 28 engineers who dedicated  themselves to researching and developing LED controlling and dimming system.
Question 4: What Fahold will do if we have problems after receiving your products?
Answer: Our products have been strictly inspected before shipping. Once you receive the products you are not satisfied, please feel free to contact us in time, we  will do our best to solve any of your problems with our  good after-sale service.



LED Linear High Bay Lights Driver

Linear High Bay Driver,Driver Pwm 5000Ma,Slim Switch Power

ShenZhen Fahold Electronic Limited , https://www.fahold.com