Electronics360: "Veggies, Pot and LEDs"

Lighting LEDs can have efficacy ratings as high as 200 lumens per watt. Typical Edison socket LED bulbs presently on the market emit 85-100 lumens per watt, which is considerably better than the values given in the article.

The efficacy given for fluorescent lamps is also incorrect. Typical CFLs emit about 65 lumens per watt when new.