A bureau under Taiwan’s Ministry of Economic Affairs announced Tuesday, LED bulbs in the country will be required to undergo mandatory tests starting next month, according to a CNA report.

The incandescent bulb's days are numbered; by Jan.1, 2014, most will have been phased out. And a typical 60-watt bulb costs more than three times as much per year to run as a similar LED bulb. The preliminary findings of Consumer Reports latest tests show that the newest and least expensive LEDs are shining bright.