Giant Russian Greenhouse Shows LEDs Swaying Light Bulb Die-Hards

About 350 kilometers west of Moscow, in a farming region too cold to grow produce for more than a few months a year, greenhouses stretching into the horizon are being equipped with something of a revolution. The 122,000 light-emitting diodes to be supplied by Philips Lighting NV are the latest sign that a trend, which has already swept through markets ranging from homes to cars and street lamps, is now winning over the pickiest of lighting connoisseurs: farmers.