Solar Panel

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100 Watt Flexible PV Panel, 18V

● Flexible PV panel peak power of 100W, a maximum system voltage of 1000VDC, an operating voltage of 18V, and an operating current of 5.55A. ● Transparent PET lamination technology, offers durability and excellent light transmission. ● Easy installation on curved or uneven surfaces such as RVs, boats, tents, and other mobile applications. ● Esidential use for outdoor camping and leisure activities, and charging 12V batteries.

120 Watt Flexible PV Panel, 18V

● Ultra-thin 120W, 4*9 glossy flexible PV panel for sale. ● High quality monocrystalline silicon solar cells, conversion rate up to 21%. ● Net weight is only 2kg, lightweight and easy to carry, suitable for outdoor use. ● Can be gently bent to a maximum of 30°, allowing flexibly mounted on tents, sailboats, car surfaces.

15 Watt Flexible PV Panel, 5V

● 15W flexible solar panel for sale. Made with monocrystalline silicon, offer high conversion efficiencies. ● 0.45kG lightweight and easy to install. Materials are waterproof and anti-pollution. ● Highly durable and environmentally resistant to harsh weather and physical damage. ● Can be rolled up, folded, and easily transported, perfect for portable solar solutions like camping, boating, or use on RVs and mobile homes.

15 Watt Portable Solar Panel

● 15W folding solar panel for sale, built-in 10000mAh high quality lithium polymer battery, supply power day and night. ● Uses intelligent voltage regulator technology to stabilize the output voltage at 5V all the time. ● Adopts high sensitive and high conversion monocrystalline silicon solar panel, conversion rate up to 23%. ● Lightweight and portable, made for outdoor, can be used for picnic, camping, adventure.

35 Watt Flexible PV Panel, 18V

● Flexible PV panel with peak power 35W, peak voltage 18V, peak current 1.95A. ● High-efficiency monocrystalline silicon cells with 22% conversion efficiency. ● Flexible design suitable for uneven surfaces. Lightweight and portable, easy to install. ● Ideal for various applications such as RVs, boats, tents, and more.

50 Watt Flexible PV Panel, 16V

● 50 Watt flexible photovoltaic panels with high-efficiency monocrystalline silicon cells, with a conversion efficiency of up to 22%. ● The junction box is IP65 rated and offers excellent protection against dust and water. ● Easily installs on curved or unroofed surfaces such as RVs, boats, stands and other mobile applications. ● Ideal for use in caravans, boats and motorhomes, providing reliable renewable energy for off-grid adventures.

20 Watt Flexible PV Panel, 18V

● Essential for Household Camping: 20 watt flexible monocrystalline silicon solar panel, 22% high efficiency conversion rate, portable design. ● Green Energy Booster: Great for outdoor activities, 18 volt output, built-in USB*2+DC port. ● Natural Energy Capture: Flexible and lightweight, 21.6 volts open circuit voltage, must have for wild leisure. ● Solar Portable Power: Single panel, 1.2 Amp short circuit current, long-lasting output stable power.

20 Watt Portable Solar Panel, 5V

● Portable folding 20W PV panel, also mobile power on sale. ● High energy conversion rate by using third generation enhanced and highly sensitive polycrystalline silicon panel. ● Tough TPU material is used to realize waterproof and mildew-proof characteristics. ● Bare weight of only 600g, easy to carry, suitable for a variety of outdoor occasions.

30W Portable Solar Panel

● 30W portable solar panel features high-performance mono 156.75 cells. ● Foldable panels are easy to carry and can be lifted with one hand. ● DC5521 converter head, DC cable accessories complete, to meet the mobile phone, camping and other charging needs. ● Solar panels paired with solar generators for indoor and off-grid living.

40W Portable Solar Panel

● The 40W portable solar panel uses advanced photovoltaic technology to convert sunlight into solar electricity, providing a reliable energy solution. ● Equipped with multi-functional charging interface, the foldable solar panel can utilize solar charge to meet the charging needs of various electronic devices. ● The solar panel is made of PVC fabric, which is waterproof and wear-resistant, adapting to various harsh environments and ensuring reliable operation for a long time. ● The portable power station with solar panel is ideal for outdoor activities, camping and emergencies.

150 Watt Flexible PV Panel, 18V

● Flexible 150W monocrystalline solar panel with 18V MPP voltage ensures efficient energy harvesting. ● PV modules maximizes energy output through 18V MPP voltage, 8.3A MPP current, reliable and efficient. ● With 36PCS cells, flexible layout, combined with MC4 compatible connectors, simplifies installation and meets the needs of outdoor recreation. ● CE/ROHS certified, IP65 rated junction box ensures durability and safety, flexible application for various solar systems.

300 Watt Flexible PV Panel, 18V

● Flexible solar panel with 300Wp, suitable for outdoor camping, flexible and lightweight. ● Tough and flexible design, equipped with MC4 connector, simple and reliable, a must-have for outdoor adventure. ● High-efficiency monocrystalline silicon PV module, working voltage 18V, brings stable and reliable outdoor / residential energy. ● Unique cell layout 11*6, photovoltaic efficiency 22%, providing you with reliable solar power.

60W Portable Solar Panel

● With advanced monocrystalline silicon solar cells, the best 60W folding solar panel offers superior energy conversion efficiency to ensure maximum solar energy capture in outdoor environments. ● Compact design and lightweight materials make this portable solar panel ideal for outdoor activities, camping or emergency situations. ● Equipped with multiple USB and DC output ports, it is compatible with a variety of electronic devices to provide you with renewable energy anytime, anywhere. ● The panel is made of high light transmittance PET laminate and waterproof 600D polyester back to ensure reliable operation in all weather conditions.

70 Watt Flexible PV Panel, 18V

● Portable solar energy system, ideal for outdoor camping, 70 watt flexible solar panel, thin and portable. ● Unique design, 23% high efficiency, 18V output voltage, IP67 waterproof junction box, safe and reliable. ● Natural environment friendly, PET+EVA+battery cell structure, cold and heat resistant, 3-5 years lifespan. ● Multi-functional application can be used in outdoor activities, field leisure, easy charging, unlimited convenience.

70 Watt Portable Solar Panel, 20V

● Good solar pv panels for sale. 70 watts of power with a stable 20V output, efficiently charging multiple devices. ● Features a 25% conversion rate using high-quality monocrystalline silicon. ● Waterproof and dust-resistant, over 50,000 folding cycles, suitable for outdoor use. ● Perfect for camping, hiking, and other outdoor adventures, as well as emergency preparedness.

80 Watt Flexible PV Panel, 18V

● 80W monocrystalline solar panel, 18V, pursuing high efficiency conversion, reliable and durable. ● Portable solar system is stable and adaptable to all kinds of climate. ● High-performance residential use, conversion efficiency up to 22%, suitable for outdoor activities or residential applications. ● Natural and eco-friendly solar energy, flexible mono-crystalline PV modules that work in a variety of natural environments.

80W Portable Solar Panel

● 80W portable solar panel features high-performance mono 156.75 cells. ● Foldable panels are easy to carry and can be lifted with one hand. ● DC5521 converter head, DC cable accessories complete, to meet the mobile phone, camping and other charging needs. ● Solar panels paired with solar generators for indoor and off-grid living.

100W Portable Solar Panel

● High efficiency solar panels for sale, solar panel efficiency of 100W for off-grid living. ● Walkable solar panels can be paired with solar generators for solar savings. ● Folding solar panels are made of monocrystalline silicon solar cells, higher photovoltaic conversion rate, higher power generation rate. ● Multiple USB and DC solar output ports are convenient for solar energy storage and device charging.

120W Portable Solar Panel

● The 120W portable solar panel is equipped with high-performance mono 156.75 cells. ● Its foldable design enhances portability, allowing for easy one-handed carrying. ● Complete with a DC5521 converter head and comprehensive DC cable accessories, it caters to various charging needs such as mobile phones and camping devices. ● solar panels are ideal for pairing with solar generators, making them suitable for both indoor and off-grid living situations.

140 Watt Flexible PV Panel, 18V

● 140 Watt flexible PV panel adopts monocrystalline silicon cells with a conversion efficiency of up to 22%. ● Flexible solar panel operating current is 8A, short-circuit current is 8.4A, operating voltage range is 16V-18V, open-circuit voltage is 22V. ● Built-in backflow protection and short circuit protection. Panels are made of high quality ETFE material. ● Ideal for outdoor activities, car charging, RVs, boats, emergency power.

A solar panel, also known as a photovoltaic panel, is a device that utilizes solar energy to generate electricity. It consists mainly of solar cells, which convert sunlight directly into electricity through the photovoltaic effect. Solar panels are usually arranged in a grid pattern and mounted in a support structure to form a group of photovoltaic modules. These modules can be described as a series of encapsulated and connected solar cells that are primarily used to convert solar energy into electrical energy. The primary material used in solar panels is silicon, which is one of the most direct and efficient forms of solar energy utilization among many others. Solar panels are used in a wide range of applications, including homes, commercial buildings, solar water heaters, and various portable power sources, among many others. Due to their high efficiency and environmental friendliness, solar panels are widely used and promoted worldwide.

High quality, high efficiency monocrystalline solar panels for sale. Monocrystalline solar panel is an assembly of several monocrystalline silicon solar cells assembled in a certain way on a single panel. The photoelectric conversion efficiency of monocrystalline solar cells is about 15%, with the highest reaching 24%, which is the highest photoelectric conversion efficiency of all types of solar cells. PowerHome sells high-efficiency monocrystalline silicon solar panels. Welcome to make your purchase.

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Principle of Solar Panel Power Generation

Solar panels utilize the principle of photovoltaic effect to convert sunlight into electricity. It works on the photovoltaic effect, the conversion of sunlight, and energy loss.

I. Photoelectric effect

The photoelectric effect refers to the fact that when light strikes the surface of certain substances, the electrons on the surface of the substance are excited to produce an electric charge by absorbing the energy of the light beam. This effect is the basis for solar panels to be able to convert light energy into electricity.

According to the principle of the photoelectric effect, when a specific type of material is illuminated by light, photons (particles of light) interact with atoms or molecules on the surface of the material. The energy of the photons is transferred to the electrons in the material, resulting in an increase in the energy level of the electrons, causing them to dissociate from the solid. This results in the formation of free electrons and positive ions. A free electron is free to move around, just like a charged particle.

II. Transformation of sunlight

Sunlight is composed of a series of photons with different wavelengths. When sunlight hits a solar panel, the surface of the panel reflects, absorbs, or transmits the light. Solar panels usually consist of multiple solar cells, each made of a semiconductor material, such as silicon. When photons of light interact with atoms or molecules on the surface of the semiconductor material, a photovoltaic effect occurs, creating an electrical charge. These charges are collected by wires, which create an electric current.

III. Energy loss

However, some energy is lost in the process of solar light conversion. The main energy losses include:

  1. Reflection: Part of the sun's rays will be reflected back on the surface of the solar panel and cannot be absorbed and utilized.
  2. Transmission: A portion of the light that passes through the solar panel is transmitted and again not absorbed by the solar cell.
  3. Heat loss: Part of the light energy is absorbed by the solar panel and converted into heat energy, which results in energy loss.

In order to minimize energy loss, solar panels are usually designed with the following measures:

  1. Reflective layer: A layer of reflective material coated on the surface of the solar panel can redirect the reflected light to the surface of the solar cell, increasing the absorption of light.
  2. Anti-reflective film: By coating the surface of the solar cell with an anti-reflective film, the reflection of light is reduced and the absorption of light is increased.
  3. Multi-layer structure: By stacking solar cells of different materials on top of each other, different wavelengths of light are each absorbed and utilized in the most efficient way.

In summary, solar panels work by utilizing the photoelectric effect to convert sunlight into electricity. The interaction of photons through the surface of the solar cell causes the electrons on the surface to be excited to produce an electric charge, which is collected through a wire to form an electric current. However, there are energy losses during the conversion process, including reflection, transmission and heat losses. In order to minimize energy losses, solar panels adopt a series of design measures to improve the efficiency of solar energy absorption and utilization.

Difference Between Monocrystalline and Polycrystalline Solar Panels

The main differences between monocrystalline silicon solar panels and polycrystalline silicon solar panels are materials, conversion efficiency, production costs and application scenarios. The following are the specific differences between the two types of solar panels:

  1. Material: Monocrystalline silicon solar panels use high-purity monocrystalline silicon material, while polycrystalline silicon solar panels use polycrystalline silicon material. The crystal structure of monocrystalline silicon solar panels is highly regular, with smooth electron movement, so the conversion efficiency is higher; polycrystalline silicon solar panels have an irregular crystal structure, which is made up of many grains put together, and the electron movement is subjected to greater resistance, so the conversion efficiency is relatively low.
  2. Conversion efficiency: The conversion efficiency of monocrystalline silicon solar panels is usually between 15% and 20%, while that of polycrystalline silicon solar panels is usually between 12% and 17%.
  3. Production Costs: Monocrystalline silicon solar panels have a complex production process that requires high temperature and high pressure conditions to grow single crystals for a long period of time, and therefore have a higher cost; polycrystalline silicon solar panels have a relatively simple production process and have a lower cost.
  4. Application Scenario: Monocrystalline silicon solar panels are suitable for applications under high temperature and high light conditions, such as the installation of solar energy systems in the homes of urban residents; polycrystalline silicon solar panels are suitable for low-temperature and low-light conditions, such as solar power stations and other large-scale projects.