TOO COOL FOR SCHOOL: In wintery northern Japan, LED lights have encountered a problem
TOKYO: Energy-saving LED traffic lights seemed like a cool way to cut back on electricity costs, but Japanese police said they might just be too cool — because they don't melt snow.
Light-emitting diodes (LEDs) account for around 45% of all of Japan's stop-and-go signals and that proportion is growing as local authorities cotton on to their economising possibilities compared with regular incandescent lights.
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