LED solar light technology principle

Solar corridor lights belong to the new architectural lighting system. The single light of the solar corridor light adopts sound and light control, which enables people to light up, people to go off, energy saving, consumption reduction, and ease of use. Solar power system installation brief, easy to use, there is no power outage concerns. Solar corridor lights use long-life light sources and low-voltage independent power supply systems, which are safe and reliable. One-time investment and long-term free use can meet the different needs of residential buildings and office buildings. It not only meets the requirements of the national green energy-saving building, but also enhances Grade of building construction.

1, working principle

The solar corridor light includes a solar battery installed on the roof of the building and lights installed on each floor, as well as a unified battery, charge and discharge controller. The battery is connected to the lights on each floor by wires. The load uses LED lamps and works with sound and light control switches.

During the daytime, the solar cell module generates electric energy under the irradiation of a certain intensity of sunlight, and is stored in the battery through the solar charge and discharge controller. At night, the battery supplies electric energy to the load through the charge and discharge controller. In general, the design of the solar energy system will increase the capacity of the battery according to actual conditions to ensure lighting in rainy days.

2, system performance indicators

(1) Lighting power range: 2-5W;
(2) Power Supply Type: DC;
(3) Solar cell conversion efficiency: >15.5%;
(4) System power efficiency:> 85%; (5) Open-circuit voltage of solar cell: (6) Maximum operating current of solar cell: <1.8A;
(7) Battery configuration voltage: DC12V8, battery undervoltage protection point: 11.6V ± 1%;
(8) Battery under voltage protection point: 11.6V±1%; (9) Battery overcharge protection point: 14.4V±1%;
(10) Battery over-charge recovery point: 13.8V±1%; (11) Battery and solar battery reverse connection protection;
(12) With load short circuit and overload protection;
(13) Control method: battery over-charge and over-discharge control, single light control voice control;
(14) System Luminaires, LED Luminaires (DC) 

In summary, the advantages of solar street lights can be obtained:
(1) Energy Saving: The use of solar energy to provide electricity is an inexhaustible source of energy;
(2) Environmental protection: no pollution, no noise, no radiation;
(3) Safety: Low-voltage DC power supply, no electric shock, fire or other accidents;
(4) Convenient: Simple installation, easy to use, and no power outages;
(5) long life: Solar panels for more than 20 years, batteries 3-5 years, LED light sources up to more than 50,000 hours;
(6) High grade: science and technology products, green energy, and the use of the unit's emphasis on science and technology, the enhancement of the green image, and the enhancement of grades;
(7) Economical: One investment, long-term use;
(8) Applicable to a wide range: Solar energy originates from nature, so all places where there is sunshine can be used.

The lighting of the corridor light example corridor is a public facility. In principle, the installation and maintenance management is apportioned between the owner and the property. Currently, the cost of the corridor light includes two parts, one of which is the maintenance fee and the other part is the electricity fee. However, there are no uniform standards in the actual hallway light charges, making the owners and property management departments sharply contradictory. There are still many corridor lights that still use bulbs and old-fashioned switches for long and bright lights. If the corridor lights are changed to LED lighting, sound and light control switches are used. This type of solid state light with a light emitting diode (LED) as its light source consumes only one-eighth of the power of an ordinary incandescent lamp, and its lifetime is 10 times that of a conventional incandescent lamp.
For example, the 25W incandescent lamp originally used in the residential corridor will be changed to a 3W LED lamp. Each lamp can save energy consumption by 8 times. That is, every corridor lamp requires only 1.68 kWh of electricity per year (originally requires 18.25 degrees), and 300 watts. The corridor lights only need 504 kWh, which can save 4971 kWh each year. The use of solar corridor lights can not only solve the problem of energy saving and consumption reduction, but also make the first-time investment free of charge for a long time, which eases the contradiction between the property management department and the owner and reduces the cost of property management. The overall cost is more cost-effective.

Therefore, from a market point of view, not only can the existing corridor lighting system energy-saving transformation, but also according to user requirements to install solar power systems, the prospects are broad for promotion.

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