Solar Security Light, LONRIC 38 LED Outdoor Solar Energy Motion Sensor Light with 3 Modes Waterproof Solar Lighting for Porch Patio and Yard3 Modes (Change by pressing the On/off Switch) 1) Dim Light Mode : The light is dim at night when there is no motion detected. But when there is motion detected, the light auto as strong light for about 12s and dim again after 12s. 2) Strong Light without Dim Light Mode : When there is motion deteced, the light auto on for 12s, but the light will be totally off if there is no motion detected or after 12s. 3) Always on Mode : The light will keep on for 5 hours at night and charged by sunlight at daytime. Kindly ...
Solar Energy presents an introduction to all aspects of solar energy, from photovoltaic devices to active and passive solar thermal energy conversion, giving both a detailed and broad perspective of the field. It is aimed at the beginner involved in solar energy or a related field, or for someone wanting to gain a broader perspective of solar energy technologies.A chapter considering solar radiation, basic principles applied to solar energy, semiconductor physics, and light absorption brings the reader on equal footing with the technology of either solar generated electrical current or useful heat. Details of how a solar cell works and then production of current from a photovoltaic device is discussed. Characterization of a solar cell is examined, allowing one the ability to interpret the current-voltage relation, followed by discussion of parameter extraction from this relation. This information can be used to understand what limits the performance of a given solar cell with the potential to optimize its performance. Applications of solar thermal energy are reviewed in detail from passive applications, for example the solar chimney, to active, such as the solar (power) tower, flat plate water heater, and solar thermal electricity generation. Consistency of analysis between the solar thermal applications is used enabling the reader to fully appreciate similarities and dissimilarities between these technologies. Ultimately, the scientist or engineer can understand existing systems, either photovoltaic or solar thermal devices, and design their own technology given the information in this book.
Understanding Solar EnergySolar energy is free and it is located everywhere where the sun is shining. However, harnessing the energy of sun in order to convert it to electricity or heat is not an easy task. You need to use the right equipment as well as design basics in order to harness the energy of the sun effectively.There are many benefits of using solar energy to heat up or power your home. One of the most important benefits of using this renewable energy is that you can help save the environment. This green energy can also help you reduce the cost of your energy bill by as much as half. However, if you opt for solar energy to power your house, you need to educate yourself about the many options that you have. Thus, this book will serve as your guide.With this book, you can learn the following:Learn about the benefits of using solar energy in Chapter 1. Moreover, the same chapter will also give you insightful ideas on how you can finance as well as get incentives for using solar power energy.This book also teaches you on the things that you need to consider before deciding to adopt this system to your house. Installing solar power systems have several requirements thus it is crucial to know what these requirements are in order to make the most out of solar power energy.Chapter 3 also discusses the different types of solar power systems that you can opt for. The chapter gives in-depth discussion on photovoltaic, concentrated and passive solar power systems.Adopting solar power energy is very crucial for green homes and buildings.Thus, if you want to take advantage of this technology, then this book will serve as your guide on what you need to know about solar power.