Along with the development of mankind, lighting technology gradually moves to a new page when lighting equipment using electric energy from thermal or hydroelectric plants is gradually being replaced by modern equipment. using energy sources that are more environmentally friendly, such as wind or sunlight. The solar LED light is one such device. Join Paragon to find out what solar LED lights are and all you need to know about this special lamp.

What are solar LED lights?

Solar LED light is an advanced and modern type of LED lighting, depending on the type of lamp, application, manufacturer, the parts of the lamp may be different but generally they are often a combination between an LED light, a solar panel, a power supply, rechargeable battery, …. As the name suggests, LED solar lights use solar energy to light instead of using electricity as a other universal lighting equipment.

Structure LED solar light

Solar panels

Solar panels (also known as “PV panels”) are used to convert light from the sun, which is composed of energy particles called “Photons”, into electricity that can be used to provide electricity. energy for electrical loads. Most solar panels are made of monocrystalline silicon, a semiconductor material. A solar panel has two different layers of silicon. The lower layer has fewer electrons and therefore has a slightly positive charge due to the negatively charged nature of the electrons. In addition, the upper layer has more electrons and has a slightly negative charge.

Solar panels can be used for a wide variety of applications including cab remote power systems, telecom equipment, remote sensing and of course they are also used to generate electricity to power projection equipment. as bright as solar LEDs.

Power supply (rechargeable battery)

The power supply (rechargeable battery) of the solar LED light is usually placed in a plastic or metal case inside the lamp body. This part of the lamp saves energy from the solar panels and provides energy when needed at night for the lamp.

Charge controller

This section controls the whole working system to protect the battery charge. It ensures, in all cases, including extreme weather conditions with large temperature differences, the battery does not overcharge or over-discharge and damage the battery.

The charge controller also includes additional parts such as a light controller, timing controller, sound, temperature compensation, light protection, reverse polarity protection, and an AC switch switch that ensures the load. Sensitive backup works normally when a power failure occurs.

Paragon’s solar LED products only use DC power supplies to power the lights, so it’s completely safe for users.

Led light

Of course, LED solar lights are indispensable for the main light, which is the light emitting part of the lamp. LED lights of solar lights have the same structure as other grid-connected LEDs, but most of them have a high dust-proof protection rating of IP65 or higher because most solar LEDs are installed. out side. In addition, some solar LEDs are equipped with light and motion sensors to save energy and better serve the user.

Accessories included

LED solar lights have many types such as LED street lights, garden lights, wall lights, decorative lights, headlights, … Therefore, they need specialized accessories to work as best as possible. . LED street lights, for example, often need lampposts, wall lights or garden lights that need support, …

The working principle of solar LED lights

As mentioned, LED solar lights are a modern lighting device, so their operating principle is completely automatic but also not too difficult to understand for everyone who does not dig deep into engineering.

Brief

When light shines on the solar panel, the photovoltaic energy will be converted to electricity stored in the light’s power supply and will automatically discharge electricity to help the lamp glow at night. The light can tell when to light up thanks to the internal sensor, when the environment is not bright enough, the light will automatically turn on.

In addition, some lights integrated with Dimmer will only light up at maximum level at night when motion is detected, otherwise it will automatically dim the brightness.

Detail

When a stream of light particles called Photons enters, they give energy to the atoms in the silicon. It promotes one electron from the covalent bond to the next energy level from the upper layer to the lower layer. This boosting of an electron allows more free movement in the crystal, generating an electric current. The more light shines through, the more electrons move around so more current flows. This process is called the photoelectric effect. Photovoltaic systems convert sunlight directly into electricity.

Solar panels are made from a variety of different materials such as glass, shell 1, crystal cells, shell 2, back panel, junction box and finally a frame. This coating helps to remove moisture and contaminants.

Inside the power supply are electrodes including the cathode and anode where chemical reactions occur. A divider also exists between the cathode and the anode to prevent the electrodes from reacting with each other while allowing charge to move freely between the two poles. Finally, the receiver conducts electricity from the battery to the outside.

The batteries inside solar lamps often use gel electrolysis technology with high efficiency in deep discharge, so that it can be used in extreme temperatures. It can also use lead-acid, nickel metal hydride, nickel cadmium or lithium.

In general, the efficiency of the photoelectric transformation is limited for physical reasons. Approximately 24% of long-wavelength solar radiation is not absorbed. 33% is the heat lost to the surroundings, and the subsequent losses are about 15-20%. Only 23% is absorbed and turned into electricity.

Under the control of the charge controller, the light will automatically turn on when it’s dark and off during the day. In addition, some types of solar LEDs also incorporate a time controller to set the curtain time for it to automatically turn on and off the lights.

Common types of solar LED lights

Solar LED street light

Solar garden lights

Solar wall lamp

Benefits of using solar LEDs

No complicated wiring required
Absolutely no power outages and other electricity costs
Integrated backup battery for bad weather, cloudy, rainy days
Easy to install and use
No need to install transformers, electric meters
Long life, not much cost for maintenance, maintenance, repair, replacement
Environmentally friendly – 100% solar powered, solar panels reduce fossil fuel consumption, eliminate pollution.
Self-contained solution – Control on / off lights with sensor of daylight automatically or preset time.
Improved light source – LEDs have a cool white light that does not flicker and a higher brightness than sodium lamps.
Use the DC power source inside the lamp body with low voltage, without danger to the user.

Note when choosing to buy solar LED lights

Dustproof grade

As mentioned, most solar LEDs are usually installed outdoors or in dusty areas with high humidity, so a LED luminaire equipped with a high level of dustproof resistance will ensure that the lamp works. normal, stable and does not need maintenance and repair many times. Paragon recommends that you choose lamp models with an IP65 rating or above for the best user experience.

Consider the type of lamp

Because there are so many models and options in terms of design and application, you need to carefully consider the needs and installation location before choosing to buy solar LEDs.

Solar panels

An indispensable part and the main source of energy conversion for the whole luminaire, a high quality solar panel with the ability to absorb light and convert optical energy into electricity efficiently will help the luminaire. operating at the correct capacity and more efficient.

Supplier brand

Choose suppliers with seniority in lighting equipment manufacturing with after-sales and long-term support will give you more peace of mind in choosing lighting equipment such as solar LED lights. God. You can find all that at Paragon with more than 20 years working in the field of lighting production, supporting lighting design for free, a variety of types, product designs, aftermarket. good sales, up to 3 years warranty with a friendly and professional customer care team.

Please contact Paragon today for dedicated advice and find the perfect lighting solution for your home.