TESS, a Taiwanese manufacturing company, recently introduced a 7W LED bulb that, at 560 lumens, can serve as a replacement for a typical 500-lumen, 40W incandescent bulb (Figure 1). TESS has received ...
February 2015 average retail prices for 7W LED light bulbs (equivalent to 40W incandescents) in the China market increased 10.8% on month to CNY37 (US$5.9), while 9W models (equivalent to 60W ...
Average retail pricing for 7W LED light bulbs (equivalent to 40W incandescent ones) in the China market decreased 5.5% from December 2015 to CNY30.9 (US$4.8) in February, while 9W models (equivalent ...
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