Advantages of LED Solar Street Light Projects

LED Street lighting is a fresh new alternative to traditional street lamps such as LPS, HPS, or MH street lights. LED lighting provides a multitude of advantages over conventional incandescent light: LED street lights are environmentally friendly, energy efficient, and cost-effective. This smart, "green" option for outdoor lighting has emerged on the green scene due to the recent technological advancements of LED illumination.
But more "greener" option for you is Solar street lighting by recycled green energy lighting system. They are of energy saving and environmental friendly, which can be used for residential, road, park and so on. High quality solar panel absorbs sunlight and convert into electricity energy, then charges maintenance-free battery and finally LED street lights automatically when day off, auto-off when day break.
The working method of solar street lights is: solar panel absorbs sunlight and converts it to electricity to drive 60W LED Street light.
The whole system is mainly composed by:
60W LED street lighting, solar panel, lead acid battery and solar street lighting controller, pole (suggest 6-8m height).
Because of different weather condition in different country and different requirements from different market, so the specification of each part of the whole solar street lighting system, especially solar panel and battery, are depending on following factors:
• Average local daily sunshine hours.
• Working times of the system per night.
• Backup days of the solar system during rainy days.
Advantages of LED Solar Street Lighting Projects
1). Lower power consumption
2). Higher power, higher intensity
3). Save all your electricity cost. Save electric transformer and cable cost. Free maintenance
4). Environmental Impact - Eliminate Hazardous Disposal
5). Longer lifetime: Lifespan of solar panel is 20-25 years. Lifespan of LED street lights is 6-8 years. Lifespan of battery is 4-6 years.

Spark Solar Street Lights present the perfect and cost-effective solution for residential streets, park, roadways, outdoor Lighting applications areas in almost 130 countries around the world. Please NOW feel free to contact us for customized Solar Street Lighting project. View more details at: http://www.spark-oe.com

Article Source: http://EzineArticles.com/4564066

How to test the purity of amber jewelery

Use these tests to determine whether the jewellery is worth your money or not:

1. Use your eyes - while buying amber jewelery, using your eyes alone can help you save a lot of money. If you come amber necklaces, amber pendants, amber rings, amber earrings, amber bracelets or any other Baltic amber jewelery with the same insects, poised in the same position in all the pieces, you should be wise enough to bail out. Too many pieces with strikingly similar insects and trappings indicate that they were probably manufactured.

2. Static electricity test - interestingly, amber is as important in science as it is in jewellery making. Real amber gets electrostatically charged on rubbing whereas fake amber doesn't. Rub amber with a piece of cloth and take it to bits of paper. In case of real amber jewelery, paper will stick to it.

3. Ultraviolet light test - if a beam of UV rays is hone upon a piece of amber, the amber will show fluorescence which fake amber would not.

4. Heat test - if you bring a hot needle close to real amber, it will give off a resinous smell. On the other hand, fake amber would burn with an unpleasant smell.

If the jeweller knows that his amber jewelery is genuine, he won't shy away from confirming it with the above mentioned tests. On the other hand, if someone is trying to pass plastic as amber, they will forbid the tests citing company policy or other such excuses. Buying amber jewelery online is a great way of staying safe. You can search the internet for customer reviews of each company and zero down on trusted sellers.

Article Source : http://bit.ly/JsGXV6