A better question could be, which public firm (if any) has the greatest market share in the energy-efficient lighting products?
Starting first day of January, 2012, through 2014, light bulb suppliers will see a shift in the types of light bulbs they are allowed to sell on the US market, per Energy Independence and Security Act of 2007.
Starting first day of January, 2012, through 2014, light bulb suppliers will see a shift in the types of light bulbs they are allowed to sell on the US market, per Energy Independence and Security Act of 2007.