[Adrian Black] found some 9W (60W equivalent) LED light bulbs at the Dollar Tree (a U.S. store where everything costs a dollar). Naturally, they cost a dollar, and he wanted to see what was inside ...

I first tested an LED bulb seven years ago. It was not a promising beginning. The bulb was a Par 38 spotlight for a recessed ceiling fixture. The color of the light was a silvery metallic — so ...

April average retail price for 7W LED light bulbs (equivalent to 40W incandescent ones) in the China market increased by 23.4% on month to CNY35.9 (US$5.8), while that for 9W models (equivalent to ...

August average retail price for 7W LED light bulbs (40W incandescent equivalents) in the China market decreased 0.3% on month to CNY30.7 (US$4.8), while that for 9W models (60W incandescent ...