With the increasing depletion of the earth's resources, the investment cost of basic energy is increasing, and various security and pollution hazards are ubiquitous. Solar energy is an "inexhaustible and inexhaustible" safe and environmentally friendly new energy source. More valued. At the same time, with the development and progress of solar photovoltaic technology, the dual advantages of solar lighting products in environmental protection and energy saving, the application of solar street lights , solar garden lights, solar lawn lights, etc. has gradually formed a scale, and solar power has been developed in the field of street lighting Improve day by day.
When it comes to why solar street lights can save energy, I have to talk about the working principle of solar street lights: during the daytime, under the lighting conditions, the solar cell module generates a certain electromotive force, and the solar cell square array is formed by the series and parallel connection of the modules, so that the square array voltage reaches System input voltage requirements. Then charge the storage battery through the charge and discharge controller to store the electrical energy converted from the light energy. In the evening, the battery pack provides input power for the inverter, and the DC power is converted into AC power by the inverter, and then sent to the power distribution cabinet for power supply by the switching effect of the power distribution cabinet. The discharge of the battery pack is controlled by the controller to ensure the normal use of the battery. The photovoltaic power plant system should also have limited-load protection and lightning protection devices to protect the system equipment from overload operation and lightning strikes, and maintain the safe use of system equipment.
Yangzhou solar street lamp manufacturers mainly produce and sell: solar street lamp series, led street lamp series, high pole lamp series, Chinese lamp series, courtyard lamp series, lawn lamp series, various other special street lamp series, undertake road lighting projects,
Yangzhou street lamp manufacturers, solar street lamp price consultation telephone, 15050780308
Website for more information about street lamps: http: //
Hotel Safe is well used in hotel guest room. It can be used to keep cash, wallet, card, passport, laptop and some other things for guests. Additionally, with the audit trail function, hotel can check the open record all the time if there is any security issue.
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All of UNI-SEC`s safes are characterised by high-quality materials and through high-precision manufacturing. Now UNI-SEC has ISO9001-2008/CCS,CE production standard. As a professional manufacturer, both regular size and special size are acceptable by UNI-SEC. And all safes from UNI-SEC will be covered with warranty. Meanwhile,UNI-SEC will provide long time service with a separated team.
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With more than 10 years developing in the safe industry, UNI-SEC will have new design locks with new functions every year in order to follow the demands from the ending customers.
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Uni-Sec (Ningbo) Electronics Technology Co., Ltd. , https://www.hospitalityunisec.com