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An energy-saving light-emitting-diode(LED) street lamp was conducted.
Based on the simulation by optical software TracePro, a physical street
lamp system including 600 white LEDs was achieved. This system was
operated under a constant current of 20mA for each unit, and the
electric power consumption of the whole lamp was only 42W. Experimental
results demonstrated that the total average illuminance reached 8.8lx
and the overall uniformity was 0.370 for a 30-m-long and 10-m-wide test
area at a height of 8m, which is fully acceptable for the current
standard for sub-main road.
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