efficiency of LED Downlight

12/07/2013 09:28

 If the drive for energy efficiency into account, then you can calculate the worst-case efficiency of  LED Downlight  33.2lm / W. This result can meet the current Energy Star program requirements, close to the reflective CCFL lighting performance, but still four times higher than incandescent performance even higher.

LED Strip 

Vastly different LED

 

This example uses a brightness of 60lm, current is 350mA, CCT is a warm color temperature 3000K LED. LED manufacturers have announced the launch of several performance over 100lm @ 350mA lighting devices. The LED is cold white LED, CCT is 6500K, wherein a variety of mixed phosphor produce white light.

GU10

Cool White LED performance has improved in the past two years has doubled. If the energy efficiency of warm white LED has a similar performance, then the near future we will be able to see with 80lm / W warm white LED.

 

In the example above, isolated drive selection for improving the energy efficiency of the entire lighting system also plays an important role. Currently this is a price and performance trade-offs between the two issues. The linear actuator is the lowest price, but its efficiency is 50% to 60% range.

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