In the 20th century, the main energy resources as petroleum, natural gas, coal etc. are facing the danger of exhaustion. And at the same time, under the increasing pressure of environmental protection, energy saving and environmental protection have become the development trend in various industries. As inexhaustible clean energy, solar energy will be the most ideal green energy in the 21st century. The effective method to convert solar energy into electrical energy is by solar photovoltaic power generation technologies. LED Emitting Diode is a kind of component which can transform electricity into visible light. With its characteristics of pollution-free, it has already been applied to lighting in many fields. Therefore, as owning the integrated advantage of the solar and portable solar traffic signal, solar LED lighting system is the perfect combination of new energy and new light source.

And the solar street light series of Shenzhen Noble Opto CO.,LTD is designed to be powered by solar energy too. The main principle is that solar panel generates the sunlight in daytime and store the transferred electricity in battery, and during night it releases the power to LED street light for working. This product has characteristics of uncomplicated and costly pipe laying, the safe and energy-saving, pollution-free, stable and reliable operation,maintenance-free. And it also can be designed according to the customer's request.

The key for perfect combination of solar and LED traffic signal lights lies in that they both use DC low voltage and can match with each other. Their combination doesn’t need to inverter which is used to convert direct current to alternating current. So this function has increased lighting system efficiency greatly. Meanwhile based on technology of PV grid system, all advantages are more obvious.

Green energy resources and the sustainable development is the important task in 21th century. Nowadays, government pays much attention to the development of new energy, sufficient and reasonable utilization of existing energy. Currently, the solar energy technology and semiconductor lighting industry has stepped to commercialization phase. Relative product have been applied to led road lighting.led street lighting ,led traffic signal lighting, night illumination and courtyard decoration. Through the analysis of the feasibility and technical characteristics, we believe solar led lighting system will be developed with an unprecedented speed, leading us into a new eare of green energy.