Q: How can we save energy from <strong><a href="https://www.zgsm-china.com/case-study/series-h-commercial-street-lights-in-hospital-parking-lot-in-panama.html">street lights</a></strong>?

LED street lighting is currently the most energy-efficient solution. Another key to reducing the energy consumption of street lights is to make better use of the energy of existing street lights, which can be achieved by using various sensing devices to switch lights, such as motion sensors, infrared sensors, automatic timers, etc.

Question 1

How can we save energy from street lights?

Accepted Answer

LED street lighting is currently the most energy-efficient solution. Another key to reducing the energy consumption of street lights is to make better use of the energy of existing street lights, which can be achieved by using various sensing devices to switch lights, such as motion sensors, infrared sensors, automatic timers, etc.

Question 2

How to calculate the return on investment of LED lights?

Accepted Answer

Taking LED street lights as an example, we use 100-watt LED street lights to replace 250W high-pressure sodium lamps. The road is 1 km long, with two lanes of road, and the distance between utility poles is 40 meters. The street lights are installed in the middle, which means we have 25 lampposts. Upon verification, the average electric rate is $0.32 per hour(German, 2021). Referring to electricity price statistics, the operating cost of street lights is (50x150x0.32x12*365)/1000 = $10,500. We consider that the annual electricity cost of a lamp is $210. Generally speaking, the installation cost of street lamps (including lamps) is $500. According to this electricity price and lamp installation cost, ROI=500/210=2.38 years.

Question 3

What does a low payback period mean?

Accepted Answer

A short payback period means that the investment will "pay off" in a relatively short period of time, in other words, the cost of the investment will be quickly recouped by the cash flow that the investment will generate. LED street lights are such a short payback solution.

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Series H outside street lights for Shang Garden Community

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LED Street Light

Solar Street Light

Led Flood Light

Solar Flood Light

LED High Bay Light

High Mast Light

LED Traffic Light

LED Tunnel Light

LED Garden Light

LED Canopy Light

Led Bollard Light

Lighting Accessories

Smart Systems

Simulation Design

Smart Financing