Solar LED lighting system technologies and engineering design
The Solar LED lighting is a practical knowledge website that organically combines the design of LED solar lighting system with lighting technologies engineering application
The lighting time of the current solar LED lighting system in sunny weather can be set according to user requirements, and for the same location, it is directly related to the selection and ratio of solar cell components and storage batteries. On the premise that the power of the light source is determined, the larger…
At present, the electricity consumed by lighting accounts for about 20% of the entire electricity consumption. Reducing the electricity consumption for lighting is an important way to save energy. In order to achieve this goal, the industry has researched and developed a variety of energy-saving lighting appliances, and achieved certain results. However, the requirements for…
When comparing the characteristics of silicon crystal solar cells and LEDs, it can be found that they have many similarities as follows: (1) All are semiconductor devices. Solar cells, like LEDs, are semiconductor devices, which are diodes made of PN structure. It’s just that solar cells convert light into electrical energy, and LEDs convert electrical…
(1) Controller. The function of the controller is to make the solar cells and storage batteries work efficiently, safely and reliably to obtain the highest efficiency and prolong the service life of the storage batteries. The controller controls the charging and discharging of the battery, and according to the power demand of the load, controls…
Solar LED lighting systems have different scales and application forms. The system scale spans a large range, ranging from 0.3~2W lawn lights to hundreds of watts of solar LED high-pole lights. Its application forms are also diverse, and can be widely used in many fields such as household, transportation, communication, space and so on. Although…
The principle of solar LED lighting The principle of solar LED lighting is shown in Figure 1. When light irradiates the surface of the solar cell, part of the photons are absorbed by the silicon material, and the energy of the photons is transferred to the silicon atoms, causing the electrons to undergo transitions, becoming…
Among the effective use of solar energy, solar photovoltaic lighting systems are the fastest growing and most dynamic research field in recent years. Solar energy is a kind of radiant energy. The solar photovoltaic lighting system is used to directly convert sunlight into electrical energy to provide lighting appliances. It can only be achieved with…
The sun is a huge, long-lasting, and endless energy source. Solar energy is both a primary energy source and a renewable energy source. Solar energy is rich in resources, can be used free of charge, does not require transportation, does not pollute the environment, and has the advantages of energy saving, environmental protection, and convenience….
Thermal characteristics of LED The optical parameters of the LED have a great relationship with the junction temperature of the PN junction. Generally, the temperature rise of the LED is not obvious when the LED is continuously lit for a long time at a small current IF<10mA or 10-20mA. If the ambient temperature is high,…
1. Luminous brightness. Brightness is an important parameter of LED luminous performance. It means that the surface brightness of the luminous body in a certain direction is equal to the luminous flux radiated by a unit projected area on the luminous body’s surface in a unit solid angle. The unit of brightness is cd/m2. The…