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created Apr 13 2016

updated Nov 22 2016

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Description

The City’s 100,000 street lights are in the early stages of conversion from high pressure sodium vapour lamps to LED luminaires. About 17,000 are converted now; the goal is to have the rest done within five years.

Sodium vapour lamps ranged from 70 to 1,000 watts. The LED lamps, which use 16 to 200 watts, save about 35% in both energy costs and greenhouse gas emission spin-off. It is believed that the total saving could reach 50% by 2020 with technological improvements.

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Transportation
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streetlight, led
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