Solar Street Lights: An Introduction 

A street light, street lamp or lamp standard is a light source raised on the sides of roads. They turn on light at certain time in the night to avoid accidents. They have light photocells, which turn them on at dusk and turn them off at dawn  . They provide citizens with the increase in security. As darkness result in number of accidents and fatalities, so these lights help to minimize such disasters.

 On the other hand they can also cause accidents if misused or create light pollution.  In the past such street lights were used which derived power through electric cable from an electric source. But now new street lights work on new phenomena called solar power. These days despite of getting electricity from old conventional sources we can use sunlight to produce electric current and can save this electric current in batteries.

What Solar Street Lights can do for you

Solar powered lighting is relatively very small concept. Solar street lighting system can save energy. It is environment friendly and is convenient to install. They are powered by solar panels, which convert solar energy into electric power, and this power is stored in lead acid storage battery. It is stable and safe in capability. This system has photovoltaic sensor, which automatically turn off and on the light when required. The light can be kept on all night by a full day charging. They require low cost installation because no heavy cable and electric source from outside is required for this purpose. This product has long life and requires low maintenance as compared to other types of streetlights. They need maintenance after 60,000 hours of operation. The application areas of these lights are :

1. Residential streets. 
2. Parking lots. 
3. Docks and Piers. 
4. Remote and Rural locations. 
5. High crime areas.
6. They consist of LED lights, which have 40% to 70% less power consumption than other lights. LEDs used in it do not produce pollution making this light source environment friendly. These solar lights can easily be configured by meeting requirements with solar module, wind module and battery banks. One main advantage of solar streetlights are that they are cost effective and we do not have to pay electricity bills. Implementing this system at country level can saves a huge amount of electric consumption. There are different types of solar streetlights. Some of them are as underLVD lamp based solar streetlights. 
7. LPS lamp based solar streetlights. 
8. HPS lamp based solar streetlights. 
9. Halogen lamp based solar streetlights. 
10. Metal halide lamp based solar streetlights.

Solar Street Lights: Some facts

We need to size correctly the solar panels, lamp battery and solar controller according to the geographic area. They have extremely long life as compared to conventional streetlights. They improve the visibility and security.  No glare and light pollution is given off. So implementing this technology of solar street lights on country level will be justified decision.

Regards,

The Solar Heating Systems Team

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