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How Do Solar Powered Security Lights Work
We take the sun without any consideration. Every single day we wake up to it. We enjoy its warmth, and its light. But it may possibly accomplish that far more than simply warm us up. It generates huge amounts of energy within the type of light. The sun produces more energy than all the power stations on the earth combined so it seems a shame to waste it. We could use it to power toasters, fridges, TVs MP3 players, factories and rather more.
Solar powered security lights need no electricity; they are powered by the suns energy. They’re designed to work all year round, even within the UK where we have now a variety of cloud cover. The suns energy is so great that it passes through clouds, albeit not so strong, meaning solar powered security lights will work even on cloudy days in the UK. Because they dont require any mains electricity they’re green and can flat push button switch be utilized just about anywhere.
Solar powered security lights are made up of three primary items; the solar panel, the light unit and the PIR (switch).
The sun produces a spread of energy. We are able to only see the visible white light produced by the sun. Specific rays of a special wavelength to visible white light produced by the sun are collected using the solar panel also referred to as a photovoltaic panel (PV). The solar panel is manufactured from numerous electrodes covered in a conductive solution. When the sunlight, or daylight, shine son these electrodes they create an electric current. This electricity is clean, environmentally friendly electricity within the form of Direct Current (DC). Solar panels are static energy producers. They don’t have any moving parts which could break and are completely silent making them perfect for residential use.
This electricity passes down a wire to the batteries inside the light unit.
The sunshine unit is made up of three things, the sunshine, the PIR (motion) detector and the batteries.
The batteries are usually located within the sunshine unit. These are charged daily by the DC electricity produced by the solar panel. The amount of electricity produced to charge the batteries depends on how strong the sun is and how many hours of daylight there is. Also, the greater the scale of the solar panel, the more electricity which may be produced. The batteries then store this energy until it gets dark, once they power the sunshine every time the unit is triggered.
Security lights often must be very bright in order that they will illuminate large areas. Mains powered security lights use halogen bulbs. These produce very strong, bright light. However, halogen bulbs use an excessive amount of power. These bulbs are no good for solar powered lights as they are going to use up the ability stored within the batteries far too quickly.
Instead, solar security lights use LEDs (light emitting diodes). LEDs only use very small amounts of energy making them ideal for solar powered lighting. Used on their own these usually are not as bright as a halogen bulb, but use 30 or more together and you may produce the same amount of light as a halogen bulb would but with far less energy consumption. LEDs also last for extremely long periods of time meaning that dont need replacing like halogen bulbs.
Security lights work when motion is detected at night. If the movement of an individual or animal occurs within a certain range of the sunshine a switch is triggered, turning the sunshine on and illuminating whoever or whatever caused the light to be triggered. This movement is detected by a PIR (Passive Infrared) sensor. This sensor is rather like a switch that turns the sunshine on. These sensors can flat push button switch usually be adjusted in order that they work depending on how dark it’s, known because the LUX, and they time how long the light should illuminate.
When all of those components are used together you will have a particularly energy efficient security light which might be mounted almost anywhere making it perfect for illuminating alleyways, homes, gardens, driveways and nearly anywhere you may think of.
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