SHANGHAI plans to apply more lighting semi-conductors to reduce energy consumption from everything including plasma TVs to crop planting, city officials said today.The plan is based on light-emitting dioxide, or LED, officials of the Shanghai Science and Technology Commission said."We are trying LED to improve people's lives in many ways," Guo Yansheng, director of the commission's high-tech production department, said during a Shanghai international LED industry exhibition today.

A federal energy bill approved in December will require a 70 percent increase in lighting efficiency by 2020, spelling trouble for the inefficient incandescent lightbulb.The year 2020 is several lightbulb changes away, but Roger Deane is not waiting to tap into the latest in green technology for lighting his Scottsdale home. An admitted electronics enthusiast, Deane has converted all his interior and exterior lighting to light-emitting diodes, or LED lighting.